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    #274 - Performance-enhancing drugs and hormones: risks, rewards, and broader implications for the public | Derek: More Plates, More Dates

    enOctober 09, 2023

    Podcast Summary

    • Unveiling the world of performance-enhancing compounds with Derek and Peter Attia.Exploring bodybuilders' experiences sheds light on the effects of compounds and informs individuals in making informed decisions about their health and fitness.

      Bodybuilders and athletes often use a wide range of compounds, including growth hormone, testosterone, and peptides, to enhance their performance and physique. Derek, a fitness educator and entrepreneur, discusses these compounds extensively with Peter Attia. While this may seem irrelevant to the general population, it is important to note that many people have questions about these substances and their effects. Through their conversation, they also explore how bodybuilders' experiences can provide insights for the general population. This interview is only part one, indicating that there is much more to cover on this topic. Ultimately, understanding the science behind these compounds can help individuals make informed decisions about their own health and fitness journey.

    • The Risks and Implications of Using Synthetic Androgens in BodybuildingIt is crucial to have a thorough understanding of the potential risks and consequences before using synthetic androgens for bodybuilding and to practice responsible usage.

      Derek's interest in androgen therapy and bodybuilding led him to heavily research various compounds and their effects. He delved into underground forums and anecdotal experiences to gain knowledge about the impact of hormones on physiology and muscle growth. However, his pursuit of extreme bodybuilding resulted in him experiencing side effects, such as sleep apnea, which made him question the potential downsides of this lifestyle. Derek's understanding of managing the side effects of these hormones was initially minimal, as he followed arbitrary bro rules without much sophistication. This highlights the importance of having a comprehensive understanding of the potential risks and implications of using synthetic androgens in bodybuilding and the need for responsible usage.

    • The risks of using underground lab compoundsUsing underground lab compounds can have serious health risks due to lack of awareness, quality control, and understanding of potential side effects and long-term consequences.

      During this period of using underground lab compounds, there was little awareness or concern for potential side effects, sterility, or quality control. People relied on anecdotal evidence and reputation in forums to determine the effectiveness and safety of the compounds. Blood work and thorough testing were rarely done, and any side effects were attributed to other factors rather than the manufacturing process. The underground market banking on the fact that synthetic antibiotics have more chronic health issues rather than acute ones. Fertility and long-term effects on gonadal function were not well understood or considered among those using these compounds. The lack of proper regulation and quality control in the underground market poses significant risks to individuals' health.

    • Prioritizing Health and Evidence-Based Guidance in Performance-Enhancing Substance UseIt is crucial to prioritize long-term health, seek evidence-based guidance, and follow proper post-cycle therapy regimens when considering the use of performance-enhancing substances.

      Many individuals who used anabolic steroids in the past did not prioritize their long-term health. There was a lack of emphasis on maintaining testicular volume and stimulating the body to recover naturally. Post-cycle therapy (PCT) regimens were often based on arbitrary timelines rather than scientific evidence. Clomid, a drug commonly used during PCT, was taken at high doses without proper justification. This approach was not based on clinical practices used in traditional TRT. Additionally, the use of growth hormone was inconsistent and often misguided, with individuals assuming inflated benefits and ignoring potential risks. This highlights the importance of prioritizing health and seeking evidence-based guidance when considering the use of performance-enhancing substances.

    • The Risks and Limitations of Non-Medical Growth Hormone UseNon-medical use of growth hormone for athletic performance may not be effective in surpassing genetic limits, and it poses potential risks to health. Trust evidence-based information and consult healthcare professionals before considering its use.

      Using growth hormone for non-medical purposes, such as enhancing athletic performance, is not supported by scientific literature. While some individuals may seek to exceed their genetic potential or improve their physical abilities, there is limited evidence to suggest that growth hormone can significantly surpass predetermined genetic limits. Even in cases of idiopathic short stature, where children have unexplained slower growth, the prescription protocols for growth hormone use may not be justified for individuals who are not significantly lagging behind in height. Moreover, using growth hormone without medical supervision poses unknown risks, including potential negative effects on health. It is important to rely on evidence-based information and consult with healthcare professionals when considering the use of growth hormone or any other performance-enhancing substances.

    • The controversy surrounding the use of growth hormone for height enhancement and as a fountain of youth.The risks and benefits of growth hormone use are uncertain, and caution should be exercised due to potential long-term health issues and a lack of clear evidence.

      The use of growth hormone for enhancing height or as an elixir of life is a controversial and risky practice. While there are extreme cases where surgeries are performed to increase height, leading to potential long-term health issues and restricted athletic capacity, there is also a widespread belief that growth hormone can be a fountain of youth. However, the medical community is divided on this issue, with some labeling it as dangerous and unethical, while others view it as the future of medicine. The lack of clear evidence and epidemiological studies make it difficult to establish the long-term effects of growth hormone use. Additionally, there are concerns about potential propagation of existing tumors. Overall, the risks and benefits of growth hormone remain uncertain, and caution should be exercised when considering its use.

    • Understanding the Role of Growth Hormone in Development and AgingWhile growth hormone is essential for proper development during adolescence, its significance decreases in adulthood. Be cautious of claims about GH replacement and its effects on function and vitality, as financial incentives may influence these views.

      Growth hormone (GH) plays a crucial role in determining height during adolescence and is responsible for proper development of bone and connective tissue. However, as we reach adulthood, the importance of GH decreases significantly. While proponents of GH replacement claim it can optimize function, fat loss, and vitality, it's important to be cautious since many of these individuals have a financial incentive. GH is often seen as a "fountain of youth" elixir, but its effects are not well-supported by evidence. Additionally, exogenous GH manipulation does not impact height in adulthood. GH's main actions include liberating free fatty acids for energy utilization and anti-catabolic action. The relationship between GH and insulin-like growth factor 1 (IGF-1) is complex, with both hormones acting at odds with each other in terms of fat storage and lipolysis promotion. Overall, the feedback loop between GH and IGF-1 regulates their production levels in the body.

    • Managing Hormone Levels in the Body through Feedback Signals and ReceptorsThe balance between growth hormone and insulin-like growth factor 1 is crucial for overall health, and understanding the feedback signals and receptors involved can help manage hormone levels effectively.

      The body has a delicate balance when it comes to hormone levels, particularly growth hormone (GH) and insulin-like growth factor 1 (IGF-1). GH is regulated by inhibitory feedback, which tells the body when to release it. When GH levels are high, IGF-1 levels are low, and vice versa, in order to maintain a balance in the body. When it comes to administering GH for rejuvenation or longevity purposes, the dosing depends on factors such as liver function and IGF-1 levels. Doctors typically use IGF-1 as a metric to determine the appropriate dose. The target IGF-1 level is usually within the normal range or a z score of 1 to 2. Ultimately, understanding the feedback signals and receptors involved in the production of GH is key to effectively managing hormone levels in the body.

    • The Role of Ghrelin and Growth Hormone in Hunger Signaling and Body EffectsGhrelin and growth hormone play important roles in hunger signaling and body effects, with potential benefits for tissue restoration, but more research is needed for conclusive findings.

      Ghrelin and its receptor agonism play a crucial role in signaling hunger to the brain. Taking a potent ghrelin receptor agonist can make someone feel hungry even if they are not. Additionally, exogenous growth hormone (GH) can have both immediate and long-term effects on the body. While GH spikes in the serum can be seen within minutes, the downstream conversion to IGF 1 can take days and stay elevated for a longer period. However, if someone stops taking GH after a prolonged period, their pituitary gland can potentially return to producing GH. This is because the pituitary gland has multiple functions and is more flexible compared to other organs such as the testes. The use of GH in tissue restoration during healing and rehabilitation is largely anecdotal but may have some positive effects, particularly in acute scenarios. Nevertheless, more research and controlled studies are needed to make definitive conclusions.

    • Approach Hormone Use in Recovery with Caution and PersonalizationHormone therapy for recovery requires personalized consideration of factors like baseline hormone levels, diet, and pre-existing conditions. Extensive research is needed for safe and effective administration.

      The use of hormones, such as growth hormone (GH), in recovery from surgery or conditions like osteopenia should be approached with caution and individualized based on specific factors. While the idea of using hormones to enhance recovery may seem appealing, it is important to consider the potential risks and side effects. It is crucial to consult with medical professionals and consider factors like baseline IGF 1 levels, dietary and nutritional status, and pre-existing conditions before considering hormone therapy. Additionally, extensive research and clinical trials are needed to determine the true effectiveness and safety of hormone administration in these contexts. Ultimately, personalized and evidence-based approaches are required for informed decision-making.

    • The effects of different peptides on appetite and hunger levels.Different peptides, such as Ipamorelin and MK677, have varying effects on hunger. While MK677 can induce uncontrollable eating, Ipamorelin can enhance sleep and increase IGF 1.

      There are various peptides, such as GHRP, GHrh, and Ipamorelin, that can affect appetite and stimulate the ghrelin receptor. However, their effects on hunger can differ greatly. For example, Ipamorelin, despite being a ghrelin receptor agonist, does not significantly influence hunger like MK677 Ibutamorin. MK677 can induce uncontrollable eating, similar to Prader Willy Syndrome. It has clinical use in GH deficient children and can stimulate natural growth hormone production. However, it is not FDA approved and may not be suitable for adults who do not require an extra 2000 calories a day. Ipamorelin, on the other hand, can enhance sleep and increase IGF 1, but its FDA approval may be limited to specific conditions like lipodystrophy. Other peptides like GHRP 6 and GHP 2 can also impact hunger, with GHRP 6 being used by bodybuilders to overcome food intake limitations.

    • The risks and uncertainties of unregulated compounds in bodybuilding and athletic enhancement.The use of unapproved compounds in bodybuilding and athletic performance enhancement is widespread, highlighting the need for stricter regulations and thorough research to ensure safety and effectiveness.

      There is a wide range of unregulated and off-label compounds being used in the realm of bodybuilding and athletic performance enhancement. While some compounds, like Tessamorlin and Simorlin, have FDA approval for specific medical conditions, many others, such as CJC 1295 and MK677, are not approved and are considered to be in a gray area. Compounding pharmacies often produce these unapproved compounds, raising questions about safety and quality standards. Additionally, the regulations and classifications of these compounds vary across countries, with substances like DHEA being over the counter in the US but Schedule 1 in Canada. Overall, the lack of standardized regulations and clear guidelines highlights the need for further research and caution when considering the use of these compounds.

    • Pros and Cons of Exogenous Growth Hormone versus Natural PeptidesThe choice between exogenous growth hormone and peptides depends on individual needs and goals, considering factors like control, natural production, response to peptides, and access to data.

      There are pros and cons to using exogenous growth hormone versus natural peptides for specific goals. Exogenous growth hormone, similar to testosterone, allows for manual control and specific targeting of desired outcomes. However, it may lead to a loss of production of other growth hormone variants that the body naturally produces. On the other hand, natural peptides work with the body's natural capacity and provide a range of kilodalton isoforms of growth hormone. They may be more suitable for individuals with satisfactory natural hormone output or those who don't respond well to peptides. Ultimately, the choice between exogenous growth hormone and peptides depends on individual needs, goals, and the availability of relevant data.

    • The Mixed Effects of Growth Hormone on Muscle Growth and Athletic PerformanceWhile GH may improve muscle appearance and fat loss, its ability to significantly enhance protein synthesis and muscle growth potential is uncertain, and its use can have negative side effects on sleep and water retention.

      The use of GH (growth hormone) has mixed effects on muscle growth and athletic performance. While it may enhance body composition and cosmetic appearance of muscles, the literature is sparse on its ability to significantly improve protein synthesis and muscle growth potential. GH is more consistently shown to have a positive impact on fat loss, with the ability to liberate free fatty acids and improve utilization of substrate. However, its use can also lead to water retention and volume increase, which may mistakenly be interpreted as muscle growth. Additionally, GH can induce lethargy and affect sleep patterns, with the largest GH pulse occurring during deep sleep. Overall, the efficacy of GH in enhancing performance and muscle growth remains uncertain and dependent on individual response.

    • The Impact of Growth Hormone and Peptides on Sleep and Energy LevelsThe use of growth hormone and peptides can affect sleep and energy levels differently for individuals, with some experiencing enhanced sleep while others may feel more lethargic during the day. Timing and dosage depend on individual goals and the approach to use varies between clinical and bodybuilding settings.

      The use of growth hormone (GH) and peptides can have conflicting effects on sleep and energy levels. While some people experience enhanced sleep and restfulness with these substances, others may feel more lethargic during the day. GH is known to be rejuvenative during sleep and it is interesting to consider that the deepest point of rest coincides with the highest spike of GH. This suggests that manually inducing GH release through supplementation may result in tiredness due to prolonged sleep. The timing and dosage of GH also depend on individual goals, such as using it for lipolysis or enhancing sleep. Additionally, the approach to GH and peptide use differs between clinical settings and the underground bodybuilding world, with the latter often pushing higher IGF-1 levels for performance enhancement. The evolution of physique in bodybuilding is influenced by factors like genetics, nutrition, training, and drug use, including injections to alter muscle shape.

    • The Role of Drugs, Nutrition, and Training in BodybuildingDrugs have the greatest impact on bodybuilding outcomes, followed by nutrition and training. However, it is important to prioritize overall well-being and consider the potential health risks associated with chronic drug use.

      The use of drugs, nutrition, and training all play significant roles in shaping the physique of bodybuilders. According to the conversation between Peter Attia and Derek, the consensus is that drugs have the greatest impact, followed by nutrition, and then training. However, it is important to note that these factors are interconnected and depend on each other for optimal results. Perfect diet and training, coupled with modern knowledge, can significantly enhance muscle growth potential, but the use of drugs can still elevate it even further. Additionally, the discussion highlights the potential health risks associated with chronic drug use, particularly in relation to cardiovascular issues and fluid retention. It is crucial to consider the balance between these factors and prioritize overall well-being in pursuit of physical development.

    • The dangers of drug abuse in bodybuilding and athletic communitiesThe pursuit of extreme physiques through drug abuse can lead to serious health risks, such as insulin resistance and diabetes, highlighting the need for caution and understanding of potential consequences.

      There has been a dramatic change in the use of drugs in bodybuilding and athletic communities. The emergence of growth hormone and insulin abuse, along with the escalation of drug dosages, has led to more extreme physique enhancement. The availability of underground lab preparations has also contributed to this trend. People often don't know the exact dosages they are taking and may not understand the potential risks and consequences. The combination of growth hormone and insulin is believed to have significant effects on muscle growth and nutrient absorption, but it can also lead to insulin resistance and even diabetes at high dosages. The pursuit of extreme physiques has resulted in the use of high-calorie diets, further complicating the situation. Overall, this discussion highlights the potentially dangerous practices in the pursuit of athletic and bodybuilding performance.

    • The Impact of Diet on Gastrointestinal Health in BodybuildersExcessive food intake and poor dietary choices can lead to distension in bodybuilders, but reducing food intake can potentially reverse the issue. Further research is needed to understand the effects of different dietary approaches.

      Excessive food intake and poor dietary choices can lead to significant distension and gastrointestinal issues in bodybuilders. This is especially true for those who rely on high-calorie diets to support their muscle growth. The pressure to consume a large amount of food is necessary to sustain their physique and meet the nutrient requirements. However, this can result in protruding abdomens that resemble a "pregnant" appearance. This distension is not solely caused by organomegaly (enlarged organs), but rather a combination of factors including excessive food intake and impaired digestion. It is important to recognize that bodybuilders have to make dietary sacrifices for aesthetics, and reducing food intake can potentially reverse the distended gut. Further research, such as MRI scans, could provide more insights into organ volumes and the effects of different dietary approaches.

    • Revealing the Consequences: Autopsy Results Reflect the Risks of BodybuildingBodybuilders' deaths highlight the dangers of extreme fitness practices, showcasing the significant enlargement of organs and the need for further research and understanding in this field.

      The death of bodybuilders, particularly at a young age, is a serious concern. Social media now allows the public to learn from the autopsy results of these bodybuilders and gain insight into the consequences of their lifestyle choices. It has been observed that bodybuilders who died had significantly enlarged organs, such as hearts three times the normal size. While the exact causes of these deaths are complex and multifactorial, it is clear that organ growth is a contributing factor. Even bodybuilders who appear to be taking precautions, like regular blood work, are not immune to the risks. Additionally, there are cases where vaccines and other variables may play a role. Overall, the death of bodybuilders raises important questions about the potential dangers of extreme fitness practices and the need for further research and understanding.

    • Understanding Health Risks and Prevention MeasuresMonitoring aneurysms, taking precautions during long flights, and addressing cardiovascular issues in bodybuilding can help reduce health risks. Understanding hormone levels is crucial for overall health.

      There are several key factors to consider when it comes to health risks related to aneurysms and deep vein thrombosis (DVT). Aneurysms in the head behind the stomach are particularly dangerous and should be monitored. Additionally, DVT can be a risk factor during long flights, potentially leading to a pulmonary embolism. Measures such as hydration, compression hose, and controlling clotting potential through medication can help reduce these risks. When it comes to bodybuilding, cardiovascular issues, particularly cardiomyopathy, seem to be a common cause of death among young bodybuilders. Unchecked high blood pressure and stimulant abuse can contribute to these issues. It is important to understand the relationship between hormones, testosterone production, and related factors like androgen receptors and estradiol for overall health.

    • Hormonal Balance and the Role of TestosteroneThe body has a complex system for regulating hormone production. Testosterone plays a crucial role in sexual differentiation and overall hormonal health. Understanding and maintaining hormonal balance is essential.

      The body has a finely tuned system for regulating hormone production and maintaining hormonal balance. The hypothalamus releases gonadotropin releasing hormone (GnRH), which stimulates the pituitary gland to produce gonadotropins. These hormones then work on the gonads to produce testosterone and support fertility. The levels of testosterone and estrogen in the body are regulated through a feedback loop. When enough hormones are present, the brain sends a signal to decrease production, and when levels are low, more hormones are produced. Lifestyle factors, such as obesity, can impact hormone production and balance. Testosterone converts into two hormones, DHT and estradiol, which play a role in androgenicity and femininity. Understanding and maintaining the balance between androgen and estrogen is crucial in sexual differentiation and overall hormonal health.

    • The Role of DHT in Masculineization and DevelopmentDHT is a crucial hormone in the development of male characteristics, but its absence is not necessarily harmful. The use of 5 alpha reductase inhibitors should be carefully considered and personalized.

      The hormone dihydrotestosterone (DHT) plays a crucial role in masculineization and development, particularly during puberty. It is the most androgenic hormone in the body and is responsible for male characteristics such as muscle growth, body hair, and voice deepening. Without DHT, individuals may experience incomplete maturation, including micro penis and a less masculine appearance. On the other hand, estrogen has zero androgenic activity and is feminizing. While DHT is important post-puberty for cognitive health, estrogen balance, and other functions, its absence is not necessarily detrimental to survival or overall well-being. 5 alpha reductase inhibitors like finasteride and dutasteride, which block the conversion of testosterone to DHT, have been used for conditions like hair loss and prostate enlargement. However, the stance on these inhibitors is unclear, with potential side effects and controversial discussions on post-finasteride syndrome. Overall, the use of 5 alpha reductase inhibitors should be carefully considered and individualized.

    • Hair Loss Treatments: Weighing Options and ConsiderationsWhen considering hair loss treatments, it is important to carefully weigh the potential benefits and possible side effects. Consult with a healthcare professional to make an informed decision based on individual preferences and concerns.

      There are various treatment options available for hair loss, but it's important to carefully consider their potential side effects and effectiveness. Some drugs, like finasteride and oral minoxidil, can have systemic effects on the body, leading to possible sexual side effects or unknown risks. Topical options like minoxidil and 5 alpha reductase inhibitors may be better tolerated and have more predictable outcomes. However, these treatments may only provide temporary solutions and not prevent further hair loss. It's crucial to weigh the potential benefits against the possible consequences and consult with a trusted healthcare professional who has a good understanding of these medications. Ultimately, the decision to address hair loss should be based on individual preferences and concerns.

    • The Impact of Hair Loss on Psychological Well-being and Available Treatment OptionsHair loss can have a significant psychological impact, and early prevention measures and treatment options can help slow down or stop further hair loss, but regaining lost hair may be difficult.

      Hair loss can be a significant source of psychological stress for some people and should not be overlooked. While it may seem absurd to some, there are individuals who care more about hair loss than heart disease. For those experiencing hair loss at a young age, there are treatment options available. The use of a 5-alpha reductase inhibitor like finasteride, along with a topical anti-androgen, can help decrease the burden of androgen and potentially slow down or stop further hair loss. However, it is important to note that regaining lost hair and getting back to baseline is unlikely, especially if prevention measures were not taken earlier. Building a foundation of hair health is similar to building muscle at a younger age, making it easier to maintain in the long run.

    • Alternative Hair Loss Treatments and Effective OptionsThere are safer alternatives to RU 58841 for hair loss treatment, such as pyrolutamide. The most effective treatments are 5 alpha reductase inhibitors and minoxidil, but individual needs and preferences should be considered.

      There are alternatives to using RU 58841 for hair loss treatment, such as the compound called pyrolutamide developed by Kintor. These alternatives have more safety data and comparable outcomes in terms of hair count increase. The most effective treatments currently available for hair loss are 5 alpha reductase inhibitors and minoxidil, with other treatments like PRP and microneedling providing additional benefits to some individuals. It is important to focus on inhibiting free androgenic signaling in the scalp, whether through 5 alpha reductase inhibition or anti androgen activity. It is also worth noting that extreme options like using anti androgens combined with estrogen are not recommended for most individuals. Ultimately, finding the right hair loss treatment will depend on individual needs and preferences.

    • Understanding Testosterone Levels and Considerations for Testosterone Replacement TherapyTestosterone levels in the body can vary, and age alone does not determine if testosterone replacement therapy is necessary. Thorough evaluation and consideration of individual factors and other potential causes is essential before starting treatment.

      The amount of free testosterone and androgen receptors in the body is not accurately known. This means that individuals cannot determine if their testosterone levels are saturating their engine receptors or if they are playing below or above their weight. Additionally, testosterone levels in men tend to decline gradually over time, with around a 1% drop in total testosterone and a 2-3% drop in free testosterone per year. However, age alone does not determine if testosterone replacement therapy (TRT) is necessary, as some individuals can still have high testosterone levels even in their seventies. TRT may be justifiable for individuals with primary hypogonadism who do not respond to gonadotropins, while lifestyle factors and testicular response should also be considered. It is essential to thoroughly evaluate the rationale for TRT and consider other potential causes before starting treatment. The initial dose of exogenous testosterone should be determined based on individual factors and can provide symptom relief for many individuals.

    • Importance of Injection Frequency in Testosterone Replacement TherapyMaintaining steady hormone concentrations and preventing negative side effects in testosterone replacement therapy can be achieved by injecting twice a week, striking the right balance in frequency is crucial for overall well-being.

      When it comes to testosterone replacement therapy (TRT), the frequency of injections can have an impact on hormone concentrations and overall health. While once a week may be the bare minimum for TRT, it is not considered optimal. Injecting twice a week appears to be the sweet spot for maintaining steady hormone concentrations and preventing negative side effects. Some patients even choose to inject daily, but this is more challenging and may not provide significant physiological benefits. In fact, higher peak levels of testosterone can lead to more suppression of FSHLH and increased conversion to estradiol and DHT. Thus, finding the right balance in frequency can help minimize these issues and improve overall well-being.

    • Impact of Testosterone Administration on Side EffectsReplicating the natural diurnal rhythm of testosterone levels through synthetic administration can reduce side effects and the need for additional medications, ensuring a more balanced and effective treatment.

      The frequency and stability of testosterone administration can greatly impact the side effect burden. Replicating the natural diurnal rhythm of testosterone levels through synthetic administration can lead to a lower side effect burden. This is because the closer you can replicate natural function, the more you will replicate natural side effect profiles. Taking a large dose of testosterone once a week is not representative of the body's natural state and can result in hormone imbalances and side effects. Dividing the dose into daily administrations can help prevent the need for additional medications, such as aromatase inhibitors, to manage estrogen levels. It's important for doctors to prescribe an appropriate dose and frequency to avoid unnecessary side effects.

    • Maximizing Hormone Optimization: The Importance of Frequency, Dosage, and Administration MethodOptimizing hormone levels requires careful consideration of the frequency and dosage of testosterone administration, as well as the administration method used. Additionally, higher levels of both estrogen and testosterone may contribute to better overall outcomes.

      The frequency and dosage of testosterone administration can have a significant impact on hormone optimization. Peter Attia recommends doing it twice a week, while Derek suggests using a lower dose if necessary. Metering the dosage can be annoying, but it can significantly reduce costs compared to preloaded doses. Additionally, more frequent administration of testosterone yields better results, with a significant difference between once a week and twice a week dosing. The administration method also matters, with subcutaneous (sub q) dosing potentially providing a sustained release effect due to slower absorption in fat tissue. However, the optimal administration method may vary depending on the frequency and volume of the dosage. Lastly, a study suggests that estrogen is not necessarily the enemy and that higher levels of both estrogen and testosterone can lead to better outcomes in terms of body composition, mood, libido, and more.

    • The Importance of Estrogen in the Body and Hormone Replacement TherapyEstrogen is essential for cardiovascular health, neurological regulation, mood regulation, and bone health. Testing methods for estradiol levels should be accurate to determine individual needs for hormone replacement therapy.

      Estrogen plays an important role in the body, not just for cardiovascular health, but also for neurological and mood regulation. Contrary to old beliefs, crushing estrogen levels based on arbitrary reference ranges is outdated. Estrogen has been shown to have protective effects against neurotoxicity, and studies have shown the importance of estrogen for cardio and neuroprotection. Additionally, estrogen is crucial for bone health, and maintaining a balanced testosterone to estradiol ratio is essential. Enzyme-based testing for estradiol levels can often be inaccurate, leading to overestimations, so it's important to consider other testing methods like LCMS for more accurate results. Overall, hormone replacement therapy should not only focus on testosterone but also consider other hormones depending on individual needs and health benefits.

    • Enhancing System Effects through ManipulationFocusing on different aspects of the system can yield significant results without the need for additional testosterone, such as improving cognitive function and sleep quality. Individualized approaches are necessary for optimal outcomes.

      Manipulating different parts of the system can have significant effects without the need for additional testosterone. For example, lowering SHBG levels can double free testosterone without actually providing more testosterone. Another example is using adrenal hormone replacement like DHEA based on blood work, which can improve neurological and cognitive function. The main factor that influences results is the amount of 5 alpha reducers or aromatizes into the 2 metabolites. Progesterone use in men on testosterone can also improve sleep quality and the downstream conversion of neuro steroids can inhibit anxiety and help certain individuals. Overall, individual cases may require different approaches, and lab results are not the sole determining factor. The history of anabolic steroids dates back nearly a century, with the first derivative being dannable and other compounds like methyl test and boldenone following. These compounds were developed to address specific needs, such as muscle wasting without causing extreme side effects.

    • The development of anabolic drugs: balancing muscle growth and minimizing androgenic effects.SARMS were created to be a more selective alternative to anabolic steroids, but have a lower ceiling of muscle growth and their selectivity decreases as dosage increases.

      The goal of developing anabolic drugs is to create compounds that maximize muscle growth while minimizing androgenic effects. Anabolic steroids like testosterone are equal in anabolic and androgenic activity, but researchers have been trying to create a more selective drug that can be used by anyone for muscle wasting purposes. SARMS (Selective Androgen Receptor Modulators) were developed with the intention of achieving pure anabolic activity with minimal androgenic effects. However, SARMS have a lower ceiling of anabolic activity compared to anabolic steroids, meaning they don't produce as much muscle growth. As users increase their dosage in search of similar muscle-building benefits, the selectivity of SARMS decreases. LGD4033, also known as Legandrol, is one of the most potent and commonly used SARMS. Ostarine, another well-known SARMS, has not been FDA approved and did not meet desired endpoints in studies.

    • The Use of Performance-Enhancing Drugs in Bodybuilding and its RisksWhile bodybuilders heavily rely on anabolic steroids and other performance-enhancing drugs to enhance muscle-building effects, these substances come with various risks and side effects, leading to the suppression of natural hormone production.

      Bodybuilders, particularly those competing at high levels, heavily rely on anabolic steroids and other performance-enhancing drugs. These substances, such as Austrian and DECA, provide significant muscle-building effects and help bridge the gap between natural training and using stronger compounds like steroids. However, the use of these drugs comes with various risks and side effects. Some compounds, like trend, have peculiar adverse effects like night sweats and coughing fits. Despite the availability of more designer anabolics that offer advantages over testosterone, bodybuilders still use testosterone as a base for its essential role in providing estrogen and neural protection. Ultimately, bodybuilders have accepted that they must rely on these substances, leading to the complete suppression of their natural hormone production.

    • Recovery and Considerations for Bodybuilders on Anabolic SteroidsBodybuilders who use anabolic steroids can potentially restore natural function, but it is uncertain if their potential is permanently lower. Hormone-stimulating activities and careful dosage management are important factors for successful recovery.

      Bodybuilders who use anabolic steroids and then come off the drugs can restore natural function, including testosterone production. However, it is uncertain whether they would have reached that level naturally or if their potential is permanently lower due to long-term organ inhibition. While data on recovery capacity is sparse, there are individuals who successfully recover function, although the process can be challenging and requires careful consideration. It is becoming increasingly understood that using hormone-stimulating activities like HCG during drug cycles and bridging into recovery is important. Additionally, the dosage and types of compounds used vary based on goals, with lower dosages typically used during bulking phases and higher dosages during cutting phases. The interaction between aromatase and DHT derivatives can also impact estrogen levels.

    • The Dangers and Challenges of Performance-Enhancing DrugsUsing anabolic steroids and other performance-enhancing drugs can lead to serious health risks, including gynecomastia, and can be difficult to accurately measure and monitor. It is important to understand the risks and limitations before using these drugs.

      Bodybuilders and athletes who use anabolic steroids and other performance-enhancing drugs often face numerous health risks and complications. These substances can lead to gynecomastia, or the development of breast tissue in males, which many individuals try to prevent through the use of additional drugs. However, this complex drug regimen can result in negative side effects and an imbalance of hormones in the body. It is concerning that there are cases of early deaths among individuals involved in bodybuilding, although it may not always be well-documented. Additionally, accurately measuring the effects of these drugs can be challenging, as certain compounds can interfere with standard testing methods. Therefore, it is crucial to be aware of the potential risks and limitations associated with the use of performance-enhancing drugs.

    • Importance of Monitoring Hormone Levels for BodybuildersMonitoring hormone levels is crucial for bodybuilders, as substances like Nandrolone can impact testosterone and estrogen profiles. Understanding the risks of low estrogen levels and the importance of LH replacement is essential for fertility.

      In short, one big takeaway from the conversation is the importance of monitoring hormone levels, especially in bodybuilders. It is crucial to understand the impact of certain substances like Nandrolone on testosterone and estrogen profiles, as well as the potential risks of low estrogen levels. For individuals concerned about fertility while using exogenous testosterone, replacing luteinizing hormone (LH) becomes essential to prevent testicular atrophy. Human Chorionic Gonadotropin (HCG) is commonly used for this purpose, although its availability and cost have been limited. Clomid, on the other hand, acts as a selective estrogen receptor modulator and can help stimulate testosterone production. However, it is worth noting that long-term use of Clomid may lead to an elevation in demostural levels, a cholesterol byproduct.

    • Complex mechanisms and potential risks of cholesterol-lowering drugs like clomid and chlomipheneCertain forms of cholesterol may be just as, if not more, harmful than cholesterol itself. More research is needed to fully understand the effects and safety of chlomiphene.

      Cholesterol-lowering drugs like clomid and and chlomiphene have complex mechanisms of action and potential risks. While clomid was initially believed to inhibit the enzyme that converts cholesterol, resulting in a reduction in cholesterol levels, it actually had a complete blockage of the enzyme and led to higher incidence of cardiovascular events. This suggests that certain forms of cholesterol, such as desmosterol, may be just as, if not more, atherogenic than cholesterol itself. The enantiomer of clomid, and chlomiphene, showed promise in improving outcomes in women, but it has not received FDA approval and is not legally available in the U.S. Despite this, compounding pharmacies continue to produce and prescribe it. Further research and clinical trials are needed to fully understand the effects and safety of and chlomiphene.

    • The Dangers of Non-FDA Approved Compounds and Misrepresentation of Testosterone AlternativesCarefully considering the potential harm and misleading information surrounding non-FDA approved compounds is crucial. Understanding the implications of these interventions and exploring other hormone therapies can lead to safer and more effective treatment options.

      The use of non-FDA approved compounds, such as Nclomaphene, can be misleading and potentially harmful. Advertising these compounds as superior alternatives to testosterone injections may lead to incorrect assumptions and misrepresentation. While Nclomaphene may have some technical advantages over testosterone injections, it does not necessarily mean that antagonizing estrogen receptors is beneficial in the long run. It is important to consider the sustainability and potential side effects of these compounds. Stimulating desired outcomes directly with a combination of HTG and recombinant FSH may offer a more effective approach. Additionally, suppressing estrogen activity may lead to mood dysregulation and decreased vitality. Therefore, cautious consideration should be given when mucking around with receptors in the brain, as it is important to fully understand the implications of such interventions. Fertility can also be affected by different hormone therapies, and it is important to understand the potential impacts of each treatment option.

    • The Importance of Maintaining Organ Function in Testosterone Replacement TherapyMonitoring hormone levels and maintaining organ function during testosterone replacement therapy can lead to a smoother transition when discontinuing the therapy, while high doses of HCG may prolong recovery.

      Individuals who have maintained the natural function and output of their organs while using testosterone replacement therapy (TRT) are more likely to have a smoother transition when discontinuing the therapy. This is because their organs, such as the testes, have not been significantly deprived or reduced in size. On the other hand, individuals who have relied on high HCG doses may experience a longer and more challenging road to recovery. While increasing the frequency of HCG administration may help maintain stable testosterone levels, it is important to ensure that the dosage and response are adequate to prevent shutdown. Additionally, lifestyle factors, age, and overall health can impact the recovery process. Overall, it is crucial to carefully consider the reasons for starting TRT and to monitor hormone levels and organ function to optimize outcomes and minimize complications.

    • The Impact of Androgenic Signaling on FertilityMaintaining healthy levels of testosterone and understanding the role of androgenic signaling is vital for optimizing reproductive health. Factors such as HCG, FSH suppression, and 5-alpha reductase inhibitors can all affect fertility.

      The level of testosterone and androgenic signaling plays a significant role in fertility. The use of HCG and its impact on FSH suppression is not solely determined by the interaction with LH receptors, but rather by the increase in testosterone output. Maintaining FSH levels while increasing total T through HCG can be achieved by simultaneously inhibiting FSH suppression with clomid. Additionally, intratosticular androgenic signaling seems to be the primary determinant of spermatogenesis, surpassing FSH receptor activation. Moreover, the decrease in DHT with the use of a 5-alpha reductase inhibitor like finasteride affects fertility and overall androgenic signaling, leading to a decline in sperm quality and count. Understanding the intricate relationship between androgenic signaling, testosterone levels, and fertility is crucial for individuals seeking to optimize their reproductive health.

    • Enhancing Spermatogenesis and Fertility: Supportive Measures and ConsiderationsSupplements like ubiquinol, MAC, carnitine, and creatine can aid spermatogenesis, while discontinuing certain inhibitors can be beneficial. FSH recombinant and BPC 157 have potential benefits, but caution is required. Future discussions will cover nutrition and appetite suppression.

      High intratysticular androgenic signaling is crucial for spermatogenesis, and FSH receptor activation is also important for maintaining or achieving spermatogenesis. However, some individuals may need additional support due to lack of energetic signaling or excessive oxidative stress. Supplements like ubiquinol, MAC, carnitine, and creatine can help, while discontinuing 5 alpha reductase inhibitors may also be beneficial. A small amount of FSH recombinant can make a difference for fertility in a minority of people, but it is not mandatory. The cost of recombinant FSH can vary but may be a more effective alternative to clomid. BPC 157, a peptide with angiogenic properties, may improve minor injuries, but the potential for cancer cell proliferation is a concern. It may not be necessary for everyone to use it preventatively, as it can be risky. Overall, there are still many topics to discuss, such as nutrition and appetite suppression, which will be covered in a future discussion.

    • Lean Muscle Preservation for Weight LossEducate yourself about reliable methods of weight loss and muscle preservation, while being cautious of unrealistic and unsustainable fitness claims and misinformation from medical providers.

      Body builders have a deep understanding of how to get lean while preserving muscle, despite the potential health risks involved. Their knowledge can be valuable for individuals who want to lose weight without sacrificing too much muscle mass. Additionally, it is important to be cautious of charlatans who promote unrealistic or unsustainable methods of achieving fitness goals. Many of these individuals are popular and make a lot of money because people fall for their false claims. It is crucial to educate ourselves and seek out reliable information to avoid being deceived. Furthermore, it is essential to be discerning when it comes to medical providers, even our own doctors, and to educate ourselves about our own health and well-being.

    • Exclusive perks, valuable insights, and transparency from Peter Attia's podcast and social media platforms.Peter Attia's podcast and social media provide valuable information, but it is important to consult healthcare professionals for personalized medical advice. Transparency is emphasized.

      Peter Attia's podcast offers a wealth of benefits for its members. By subscribing, listeners gain access to exclusive member-only perks and additional information. Peter Attia can also be found on various social media platforms, including YouTube, Instagram, and Twitter, where he shares valuable insights and updates. However, it is important to note that this podcast serves as general informational material and does not replace professional medical advice. To make informed decisions about their health, users should consult healthcare professionals and not ignore or delay seeking medical advice for any condition they may have. Peter Attia also emphasizes his commitment to transparency and discloses all conflicts of interest on his website.

    Recent Episodes from The Peter Attia Drive

    #307 ‒ Exercise for aging people: where to begin, and how to minimize risk while maximizing potential | Peter Attia, M.D.

    #307 ‒ Exercise for aging people: where to begin, and how to minimize risk while maximizing potential | Peter Attia, M.D.

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    In this special episode, Peter addresses the common questions about starting or returning to an exercise routine over the age of 50. Individuals in this age group have frequently reached out with questions about whether it's too late to start exercising and often express concern over a lack of prior training, a fear of injury, or uncertainty about where to begin. Peter delves into the importance of fitness for older adults, examining all four pillars of exercise, and provides practical advice on how to start exercising safely, minimize injury risk, and maximize potential benefits. Although this conversation focuses on people in the “older” age category, it also applies to anyone of any age who is deconditioned and looking to ease into regular exercise.

    We discuss:

    • Key points about starting exercise as an older adult [2:45];
    • Why it’s never too late to begin exercising and incorporating the four pillars of exercise [5:45];
    • The gradual, then sharp, decline in muscle mass and activity level that occur with age [10:00];
    • The decline of VO2 max that occurs with age [15:30];
    • Starting a training program: exercise variability, movement quality, realistic goals, and more [18:30];
    • Improving aerobic capacity: the malleability of the system, the importance of consistency, and setting long-term fitness goals [25:15];
    • Starting cardio training: base building, starting with low volume, and zone 2 training [30:45];
    • The critical role of VO2 max in longevity [36:45];
    • How to introduce VO2 max training to older or deconditioned individuals [46:15];
    • Options for performing zone 2 and VO2 max training [53:45];
    • The ability to make gains in strength and muscle mass as we age [57:00];
    • How to implement strength training for older individuals [1:01:00];
    • Advice for avoiding injury when strength training [1:07:30];
    • Risk of falls: the devastating consequences and the factors that increase fall risk [1:12:15];
    • Mitigating fall risk: the importance of foot and lower leg strength, ankle mobility, and balance [1:19:45];
    • Improving bone mineral density through resistance training [1:24:30];
    • The importance of protein in stimulating muscle protein synthesis, especially in older adults [1:31:00];
    • Parting advice from Peter [1:34:00]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJune 24, 2024

    #306 - AMA #60: preventing cognitive decline, nutrition myths, lowering blood glucose, apoB, and blood pressure, and more

    #306 - AMA #60: preventing cognitive decline, nutrition myths, lowering blood glucose, apoB, and blood pressure, and more

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    In this “Ask Me Anything” (AMA) episode, Peter provides insights on a broad range of important topics. He delves into the prevention of cognitive decline, the link between cardiovascular disease and Alzheimer's disease, and methods to lower blood glucose, insulin, and apoB. He also addresses nutrition-related queries, exploring the impact of dietary habits on weight loss and longevity, how a person can identify the best diet for themselves, and common nutrition myths. Additional discussions include optimal blood pressure, daily step goals, the benefits of standing versus sitting desks, and much more.

    If you’re not a subscriber and are listening on a podcast player, you’ll only be able to hear a preview of the AMA. If you’re a subscriber, you can now listen to this full episode on your private RSS feed or our website at the AMA #60 show notes page. If you are not a subscriber, you can learn more about the subscriber benefits here.

    We discuss:

    • Overview of topics and episode format [1:40];
    • Preventing cognitive decline [5:00];
    • How to lower blood glucose and insulin [13:30];
    • The relationship between lipids, CVD, and Alzheimer’s disease, and whether statins can increase the risk of neurodegenerative disorders and AD [23:15];
    • Reducing apoB levels through exercise and diet [31:45];
    • Pharmacological options for lowering apoB [38:00];
    • How nutrition impacts longevity via metabolic health, muscle mass, BMD and more [40:15];
    • How can someone determine the best diet for themselves? [43:45];
    • Nutrition myth: All weight loss is good [46:45];
    • Nutrition myth: Metabolic rates are dramatically different among individuals based on genetics [49:00];
    • Nutrition myth: Losing weight after a brief period of overeating is impossible [53:45];
    • Nutrition myth: GLP-1 agonists are a replacement for a healthy lifestyle [57:45];
    • Nutrition myth: There is a single best diet for weight loss [1:03:00];
    • Nutrition oversimplification: All calories are created equal [1:05:45];
    • Daily step goals [1:06:45];
    • The benefits of standing versus sitting throughout the day [1:10:45];
    • How to identify the most impactful and easiest-to-implement ways to improve your health [1:12:30];
    • The critical importance of emotional health [1:14:30];
    • Why supplements should be considered as supportive aids rather than primary solutions in one’s strategy to improve longevity [1:18:00];
    • Strategies for reducing high blood pressure [1:20:45];
    • Peter’s biggest frustrations with "mainstream health advice" [1:28:00];
    • Peter’s chaotic, yet cherished, morning routine [1:31:00]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJune 17, 2024

    #305 ‒ Heart rate variability: how to measure, interpret, and utilize HRV for training and health optimization | Joel Jamieson

    #305 ‒ Heart rate variability: how to measure, interpret, and utilize HRV for training and health optimization | Joel Jamieson

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    Joel Jamieson is a conditioning expert who developed Morpheus to give people a smarter way to build their conditioning regimen and improve their recovery. In this episode, Joel dives deep into the world of heart rate variability (HRV), explaining its scientific foundation, how it measures the balance between the sympathetic and parasympathetic nervous systems, the various methods of measurement, and how it can guide healthier lifestyle choices and improved training performance. He explores the nuances of HRV calculation, the impact of aging on HRV, and the roles of genetics, exercise, and other lifestyle factors in this process. He also covers Morpheus, the innovative training tool that won Peter over after his initial skepticism, highlighting its practicality and effectiveness in guiding training and optimizing fitness outcomes.

    We discuss:

    • Heart rate variability (HRV): evolution, science, and practical applications of HRV in athletic training [4:00];
    • Methods of measuring HRV: EKG, wrist-based sensors, and more [11:30];
    • How HRV is calculated from the data [22:30];
    • The role of the autonomic nervous system (ANS) in regulating HRV [25:45];
    • The decline in HRV with age, and the mitigating effects of fitness and other lifestyle factors [33:30];
    • The role of genetics in HRV, the modifiability of HRV, and a comparison of VO2 max and HRV as predictors of mortality [37:00];
    • How aging affects HRV and sympathetic drive, and the importance of spontaneous movement and exercise in maintaining the body's adaptability [43:30];
    • How Morpheus measures HRV using RMSSD and normalizes it to a 100-point scale for easier interpretation [49:45];
    • The Morpheus system: development, integration with various metrics, and personalized daily training recommendations to optimize fitness and recovery [51:30];
    • The benefits of morning HRV readings for assessing daily readiness compared to overnight HRV measurements [1:03:00];
    • Why Morpheus recommends using a chest strap rather than an arm band [1:10:00];
    • The impact of consistent exercise, stress, alcohol, and other lifestyle factors on HRV [1:11:15];
    • Optimizing zone 2 training with Morpheus [1:18:15];
    • Using heart rate recovery (HRR) as an indicator of athletic conditioning and the balance between aerobic and anaerobic systems [1:22:45];
    • The importance of tracking HRV trends over time rather than focusing on data from a given day [1:29:00];
    • Effect of GLP-1 agonists on heart rate and HRV [1:34:45];
    • Where HRV belongs in the hierarchy of health metrics [1:42:00];
    • Parting thoughts [1:46:30]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJune 10, 2024

    #304 – NEW: Introducing quarterly podcast summaries - Peter shares his biggest takeaways on muscle protein synthesis, VO2 max, toe strength, gut health, and more

    #304 – NEW: Introducing quarterly podcast summaries - Peter shares his biggest takeaways on muscle protein synthesis, VO2 max, toe strength, gut health, and more

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    In this quarterly podcast summary (QPS) episode, Peter introduces a new format aimed at summarizing his biggest takeaways from the last three months of guest interviews on the podcast. Peter shares key insights from each episode, covering diverse topics such as protein and muscle building with Luc van Loon, toe strength with Courtney Conley, VO2 max with Olav Aleksander Bu, liquid biopsies for cancer with Alex Aravanis, gut health and probiotics with Colleen Cutcliffe, and road safety with Mark Rosekind. Additionally, Peter shares any personal behavioral adjustments or modifications to his patient care practices that have arisen from these engaging discussions.

    If you’re not a subscriber and are listening on a podcast player, you’ll only be able to hear a preview of the AMA. If you’re a subscriber, you can now listen to this full episode on your private RSS feed or our website at the episode #304 show notes page. If you are not a subscriber, you can learn more about the subscriber benefits here.

    We discuss:

    • How Peter keeps track of his takeaways from each podcast episode [5:15];
    • Luc van Loon episode: fat utilization, muscle protein synthesis, dietary protein, aging and inactivity, and more [8:45];
    • Behavioral changes that have come about from the conversation with Luc van Loon [23:45];
    • Courtney Conley episode: importance of toe strength and the impact of dedicated foot training [26:45];
    • Olav Aleksander Bu episode: the importance of VO2 max for lifespan, and the practicalities of measuring and improving VO2 max [36:45];
    • Behavioral changes that have come about from the conversation with Olav [56:00];
    • Alex Aravanis episode: liquid biopsies for cancer detection [1:01:30];
    • Colleen Cutcliffe episode: the importance of gut bacteria balance, and the potential therapeutic uses of probiotics, particularly Akkermansia [1:16:45];
    • Mark Rosekind: the significant issue of road fatalities and injuries, their causes, and practical safety measures to reduce risks [1:27:00]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJune 03, 2024

    #303 - A breakthrough in Alzheimer’s disease: the promising potential of klotho for brain health, cognitive decline, and as a therapeutic tool for Alzheimer's disease | Dena Dubal, M.D., Ph.D.

    #303 - A breakthrough in Alzheimer’s disease: the promising potential of klotho for brain health, cognitive decline, and as a therapeutic tool for Alzheimer's disease | Dena Dubal, M.D., Ph.D.

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    Dena Dubal is a physician-scientist and professor of neurology at UCSF whose work focuses on mechanisms of longevity and brain resilience. In this episode, Dena delves into the intricacies of the longevity factor klotho: its formation and distribution in the body, the factors such as stress and exercise that impact its levels, and its profound impact on cognitive function and overall brain health. Dena shares insights from exciting research in animal models showing the potential of klotho in treating neurodegenerative diseases as well as its broader implications for organ health and disease prevention. She concludes with an optimistic outlook for future research in humans and the potential of klotho for the prevention and treatment of Alzheimer’s disease.

    Disclosure: Peter is an investor in Jocasta Neuroscience, a company working to develop klotho as a therapy for people with Alzheimer’s disease.

    We discuss:

    • Dena’s fascination with aging and how she came to study klotho [3:30];
    • Biological properties of klotho: production, regulation, decline with age, and factors influencing its levels [11:45];
    • Potential benefits of klotho on brain health [22:00];
    • The relationship between soluble klotho protein, platelet factors, and cognitive enhancement [33:45];
    • The role of platelet factor 4 (PF4) and it’s interaction with GluN2B in mediating cognitive enhancement [46:45];
    • Benefits of klotho observed in a mouse model of Parkinson’s disease [55:45];
    • Benefits of klotho observed in a mouse model of Alzheimer’s disease [1:03:00];
    • Promising results of klotho in primate models, and the importance of finding an appropriate therapeutic dose before moving to human trials [1:08:00];
    • Speculating why a single klotho injection has such long-lasting effects [1:25:30];
    • Potential cognitive benefits of klotho in humans, the impact of the KL-VS genetic variant on klotho levels, and the need for human trials to confirm these effects [1:27:45];
    • The interaction between the KL-VS genetic variant and APOE4 and how it impacts risk of Alzheimer’s disease [1:34:45];
    • The significance of klotho levels: studies linking lower levels to increased mortality and the broader implications for organ health and disease prevention [1:47:15];
    • Measuring klotho levels and determining an individual’s KL-VS status [1:52:15];
    • The promising potential of klotho for Alzheimer’s disease treatment, and the importance of philanthropy for funding research [1:58:00]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enMay 27, 2024

    #302 - Confronting a metabolic epidemic: understanding liver health and how to prevent, diagnose, and manage liver disease | Julia Wattacheril, M.D., M.P.H.

    #302 - Confronting a metabolic epidemic: understanding liver health and how to prevent, diagnose, and manage liver disease | Julia Wattacheril, M.D., M.P.H.

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    Julia Wattacheril is a physician scientist and director of the Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD) program at Columbia University Irving Medical Center. In this episode, Julia delves deep into the complex world of liver health, beginning with a foundational overview of liver physiology. She provides an in-depth look at how alcohol impacts liver function, breaking down the metabolism of ethanol and its detrimental effects. Julia then shifts the focus to understanding liver function tests and optimal enzyme levels, providing a detailed explanation of AST and ALT and elucidating why fluctuations in these levels may or may not be concerning. She provides a primer on the four major stages of liver disease, discussing risk and emphasizing the importance of early diagnosis. Julia highlights the role of liver disease in increasing the risk of cancer and cardiovascular disease and covers in detail the various strategies for diagnosing, treating, and preventing the progression of liver disease.

    We discuss:

    • Julia’s training, the importance of liver health, and the challenges and innovations of hepatology [3:15];
    • The complex and crucial functionality of the liver, its four most essential functions, and more [8:45];
    • Liver injuries: historical and evolving understanding of causal factors, and the progression to liver diseases and cancer [13:15];
    • How the liver metabolizes nutrients and what happens in the presence of excess calories or alcohol [24:45];
    • Methods of diagnosing liver disease and how insights guide treatment and management strategies [33:30];
    • The poisonous nature of ethanol to the liver [40:30];
    • Varied responses to alcohol, damaging effects of alcohol beyond the liver, and the process of advising patients on their alcohol consumption [47:15];
    • Understanding liver enzymes AST and ALT—interpreting levels, lifestyle factors that affect them, and diagnostic approaches [58:30];
    • Interpreting liver function tests for fatty liver disease, and the challenges of diagnosing liver pathologies, particularly in children versus adults [1:13:15];
    • Comprehensive liver health assessments via imaging and various diagnostic tools to prevent overlooking potential liver pathologies [1:18:45];
    • Potential impact of recreational drugs, statins, and other medications on liver function test results [1:26:45];
    • Shifting nomenclature from NAFLD to MASLD to reflect accuracy in the underlying pathophysiology and understanding of liver diseases [1:30:30];
    • Pathophysiology of MASLD, the need for proactive screening, and the significance of liver fat percentage as an indicator of metabolic health [1:36:30];
    • The importance of screening for rare conditions alongside common metabolic diseases associated with fatty liver accumulation [1:42:45];
    • Practical strategies for managing MAFLD [1:45:30];
    • The impact of fructose consumption on liver health and the challenges of disentangling its effects from other factors like obesity and insulin resistance [1:52:45];
    • The potential of GLP-1 agonists for the treatment of MASLD [1:57:45];
    • How the four stages of liver disease have evolved [2:00:30];
    • Increased cancer and heart disease risk associated with early-stage MAFLD [2:05:15];
    • Emerging drugs and therapies for addressing fat accumulation and fibrosis related to MAFLD [2:12:15];
    • Peter’s major takeaways [2:18:45]; and
    • More.

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    The Peter Attia Drive
    enMay 20, 2024

    #301 - AMA #59: Inflammation: its impact on aging and disease risk, and how to identify, prevent, and reduce it

    #301 - AMA #59: Inflammation: its impact on aging and disease risk, and how to identify, prevent, and reduce it

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    In this “Ask Me Anything” (AMA) episode, Peter delves into the often misunderstood concept of inflammation. He first defines inflammation and differentiates between acute inflammation and chronic inflammation, the latter of which is linked to aging and a plethora of age-related diseases. Peter breaks down the intricate relationship between chronic inflammation, obesity, and metabolic health, and highlights the signs that might suggest someone may be suffering from chronic inflammation. From there, the conversation centers on actionable advice and practical steps one can take to manage and minimize chronic inflammation. He explores how diet plays a crucial role, including the potential benefits of elimination diets, and he examines the impact of lifestyle factors such as exercise, sleep, and stress management. Additionally, he discusses the relevance of food inflammatory tests and concludes by examining the potential benefits and drawbacks of drugs and supplements in managing inflammation.

    If you’re not a subscriber and are listening on a podcast player, you’ll only be able to hear a preview of the AMA. If you’re a subscriber, you can now listen to this full episode on your private RSS feed or our website at the AMA #59 show notes page. If you are not a subscriber, you can learn more about the subscriber benefits here.

    We discuss:

    • Defining inflammation (and the cultural impact of Napoleon Dynamite) [1:45];
    • Acute vs chronic inflammation [8:00];
    • The connection between chronic inflammation, aging, and age-related diseases [11:00];
    • The impact of inflammation on metabolic health [18:30];
    • Understanding and diagnosing chronic inflammation: blood tests and other approaches, and challenges with measurement [20:00];
    • Factors that contribute to low-level chronic inflammation [28:00];
    • Minimizing inflammation through diet [29:45];
    • The important role of fiber for gut health and inflammation [33:45];
    • A closer look at the impact of trans fats and saturated fats on overall health [34:45];
    • Why Peter prefers dietary fiber from food sources over supplements [38:30];
    • Debunking “superfoods”: emphasizing proven methods over marketing claims for reducing inflammation [39:00];
    • Is there any value in over-the-counter food inflammatory tests? [42:30];
    • Food elimination diets: how they work, symptoms and markers to watch, challenges and limitations [45:15];
    • Identifying dietary triggers for gut-related symptoms through low-FODMAP diets like the “carnivore diet” [51:15];
    • Dairy: the complex role of dairy on inflammation and individual responses [55:00];
    • Wheat: the complexities and conflicting evidence around wheat's inflammatory effects [57:45];
    • How exercise influences inflammation [1:02:00];
    • How sleep quality and duration impacts inflammation [1:07:00];
    • The potential impact of chronic psychological stressors on inflammation [1:13:00];
    • The impact of oral health on inflammation and overall well-being [1:15:00];
    • The role of medications in managing chronic inflammation [1:18:15];
    • Supplements: evaluating the efficacy of various anti-inflammatory supplements [1:22:15];
    • Parting thoughts and takeaways [1:27:00]; and
    • More.

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    The Peter Attia Drive
    enMay 13, 2024

    #300 - Special episode: Peter on exercise, fasting, nutrition, stem cells, geroprotective drugs, and more — promising interventions or just noise?

    #300 - Special episode: Peter on exercise, fasting, nutrition, stem cells, geroprotective drugs, and more — promising interventions or just noise?

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    In this special edition celebrating 300 episodes of The Drive, Peter discusses a variety of popular topics and health interventions and classifies them based on their level of evidence and relevance using the following categories: proven, promising, fuzzy, noise, and nonsense. Peter first delves into the topic of geroprotective molecules, covering rapamycin, metformin, NAD and its precursors, and resveratrol. Next, he explores the significance of metrics like VO2 max and muscle mass, as well as emerging concepts like blood flow restriction and stem cells. The conversation extends to nutrition, addressing questions surrounding long-term fasting, sugar consumption, sugar substitutes, and the contentious role of red meat in cancer. Peter not only provides his current stance on each topic—most of which have been covered in great detail in the previous 300 episodes—but also reflects on how his opinion may have evolved over the years.

    We discuss:

    • Defining the categories of “proven, promising, fuzzy, noise, and nonsense” [3:15];
    • Rapamycin [9:30];
    • Metformin [17:00];
    • NAD and its precursors [24:30];
    • Resveratrol [32:45];
    • The importance of VO2 max, muscle mass, and muscular strength for lifespan [38:15];
    • Blood flow restriction (BFR) training [44:00];
    • Using stem cells to treat osteoarthritis or injury [51:30];
    • Fasting as a tool for longevity (and why Peter stopped his fasting protocol) [55:45];
    • The energy balance theory [1:06:30];
    • The idea that sugar is poison [1:12:00];
    • The idea that sugar substitutes are dangerous [1:22:15];
    • The debate on red meat and cancer [1:28:45]; and
    • More.

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    Special episode with Dax Shepard: F1 and the 30th anniversary of Ayrton Senna’s death

    Special episode with Dax Shepard: F1 and the 30th anniversary of Ayrton Senna’s death

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    This is a special episode of The Drive with Peter’s friend and fellow car enthusiast Dax Shepard. In this podcast, which commemorates the 30th anniversary of the death of Brazilian Formula One legend Ayrton Senna, Dax sits down with Peter to better understand what made Senna so special and why Peter remains an enormous fan. This conversation focuses on Senna’s life, the circumstances of his death, and his lasting impact and legacy on the sport of F1.

    We discuss:

    • Peter’s interest in motorsports began as a child [2:30];
    • The drama and dangers of F1 [6:00];
    • What made Senna special [13:00];
    • What Senna meant to Brazilians [24:00];
    • The cause of the fatal crash [28:15];
    • Why Peter is obsessed with Senna [40:30];
    • Being the best versus having the best record [43:30];
    • Senna’s unique driving style and incredible intuition about automotive engineering [46:30];
    • Back to the day of the dreadful race [53:00];
    • What Peter believes caused the crash [1:02:45];
    • Views on dying young, in the prime of life [1:13:00];
    • Senna lives on in his foundation and in safety changes adopted by F1 [1:21:00];
    • Statistics aren’t enough for fandom, and why people like who they do [1:24:15];
    • The biggest difference between F1 today and F1 in the 80s [1:28:30];
    • Senna’s driving superpower [1:30:30];
    • The fastest drivers currently in F1 [1:38:30];
    • Current F1 obsessions [1:45:00];
    • How hard it is to do what the top F1 drivers do [1:50:15];
    • Dax’s love of motorcycles and his AMG E63 station wagon [1:52:15];
    • Awesome Senna mementos from Etsy [2:01:15];
    • What makes specialists interesting, and Max’s devotion to F1 [2:10:15];
    • What Senna might have done if he had not died that day [2:14:00];
    • Michael Schumacher and Max Verstappen are also top F1 drivers [2:17:30];
    • Interlagos in Sao Paulo Brazil is always an incredible experience [2:18:45]; and
    • More.

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    #299 ‒ Optimizing muscle protein synthesis: the crucial impact of protein quality and quantity, and the key role of resistance training | Luc van Loon, Ph.D.

    #299 ‒ Optimizing muscle protein synthesis: the crucial impact of protein quality and quantity, and the key role of resistance training | Luc van Loon, Ph.D.

    View the Show Notes Page for This Episode

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    Luc van Loon is an internationally renowned expert in skeletal muscle metabolism. In this episode, Luc starts with an exploration of the roles of insulin and triglycerides in endurance exercise, highlighting their impact on skeletal muscle metabolism, and he offers profound insights into the significance of protein in this context. He elucidates how different protein types and forms influence muscle protein synthesis rates, exploring the nuances of protein absorption, digestibility, amino acid quality, and their implications for performance and recovery. Delving deeper, he differentiates between animal and plant protein sources, unraveling the distinctive properties of various protein types, from the differences between whey and casein to the emerging trends in collagen protein supplementation. Moreover, Luc dissects the intricate connections among physical activity, lean muscle mass, muscle protein synthesis induced by resistance training, and dietary protein.

    We discuss:

    • Luc’s background and insights about fuel selection during exercise [3:30];
    • Fuel utilization during endurance exercise [9:30];
    • Fat metabolism, intramuscular lipids, and the nutritional dynamics of endurance sports [17:15];
    • The optimal window for replenishing intramuscular fat stores and glycogen post-exercise [25:15];
    • Luc’s interest in protein metabolism and exploration of amino acids' dual role as building blocks and signaling molecules in driving muscle protein synthesis [32:15];
    • How protein metabolism differs between sedentary individuals and those engaged in predominantly strength training or endurance training [38:45];
    • The basics of how proteins are digested and absorbed, and how muscle protein synthesis is measured [50:30];
    • How factors like food texture, cooking methods, and protein composition impact muscle protein synthesis, and the importance of protein distribution throughout the day [59:45];
    • Differences in whey and casein proteins, and the ability of ingested protein to stimulate muscle protein synthesis [1:03:30];
    • Dietary protein distribution and quantity for the maximization of muscle protein synthesis [1:09:00];
    • Muscle loss with age and inactivity and the importance of resistance exercise to maintain type II muscle fibers [1:17:15];
    • Differences between whey and casein proteins, and the importance of both quantity and quality of protein sources [1:28:30];
    • Optimizing muscle protein synthesis: exercise, timing of protein intake, protein quality, and more [1:37:00];
    • How to preserve muscle while trying to lose weight [1:46:00];
    • Anabolic resistance and overcoming it with physical activity [1:55:45];
    • Importance of protein intake and physical activity in hospitalized patients [2:06:30];
    • Reviewing the efficacy of collagen supplements [2:13:30];
    • Plant-based diets: how to ensure a balance of amino acids, and other considerations [2:20:30];
    • Future research: understanding protein metabolism in the brain [2:23:45]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

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