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    #278 ‒ Breast cancer: how to catch, treat, and survive breast cancer | Harold Burstein, M.D., Ph.D.

    enNovember 06, 2023
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    Podcast Summary

    • A Comprehensive Guide to Breast Cancer: Anatomy, Types, Screening, and TreatmentsUnderstanding the three categories of breast cancer and the role of genetics can guide treatment decisions. Stay vigilant about breast health regardless of gender.

      Breast cancer is a significant health concern for women and early detection is crucial. This episode delves into the various aspects of breast cancer, including its anatomy, types, screening methods, and available treatments. Dr. Harold Burstein, an expert in the field, provides valuable insights and clarifies misconceptions. The conversation highlights the importance of understanding the three categories of breast cancer and how this framework can guide treatment decisions. Additionally, the role of genetics in breast cancer is discussed, shedding light on the impact of not only the well-known BRCA mutations but also other genes. Furthermore, the episode touches upon the existence of male breast cancer, emphasizing the importance of staying vigilant regardless of gender. This comprehensive discussion aims to empower listeners with knowledge to prioritize breast health and make informed decisions.

    • Understanding Breast Cancer and its Risk FactorsBreast cancer is a potentially fatal disease that affects many women, but early detection and understanding of risk factors can significantly decrease the likelihood of recurrence and death from the disease.

      Breast cancer is a common and potentially fatal disease that affects a significant number of women. American women have about a 12% lifetime risk of developing breast cancer, but only a small fraction of those cases will be fatal. The fatality of breast cancer depends on the stage at which it is caught and the subtype of breast cancer. However, despite advancements in treatment, roughly 15-18% of women with breast cancer are still at risk of recurrence and death from the disease. The development and changes of the breast throughout a woman's life play a role in understanding the pathology of cancer development. Factors such as early puberty, longer menstruation, fewer children, and shorter duration of nursing may contribute to the rising incidence of breast cancer in developed societies.

    • The Role of the Environment in Breast Cancer RiskEnvironmental factors, such as diet, physical activity, hormones, stress, and pollution, contribute to the development of breast cancer. Understanding and addressing these factors is important in reducing breast cancer risk.

      The environment plays a significant role in breast cancer risk. Studies have shown that environmental factors, such as food, exercise, hormones, stress levels, and pollution, can contribute to the development of breast cancer. This is evident from the shift in breast cancer rates among Japanese women who moved to the United States. Additionally, the environment in which a person grows up also affects their risk. For example, nuns who never became pregnant were found to be at a greater risk of breast cancer. Despite breast cancer being a disease that often affects healthy individuals, the exact reasons why certain individuals develop breast cancer while others do not remain mysterious. Understanding and addressing these environmental factors is crucial in helping to reduce breast cancer risk.

    • Understanding Breast Cancer Risk Factors and SubtypesWhile certain factors can slightly increase the risk of breast cancer, the overall impact is minor. Different subtypes of breast cancer have varying outcomes and understanding them is vital for treatment decisions.

      The risk of breast cancer at a population level is significant, but for an individual, the risk is still relatively small. Factors such as early onset of menstruation, hormone replacement therapy, longer estrogen exposure, shorter period of nursing, or fewer pregnancies may increase the risk by about 25-30%, but the overall impact is minor, moving the risk from around 12% to around 15%. Additionally, it is challenging to determine which factors drive an increase in risk and which factors drive an increase in mortality. Different types of breast cancer have different epidemiologic risk factors and outcomes. Estrogen receptor positive tumors are the most prevalent and have the most favorable prognosis, while triple negative and HER2 positive tumors are more aggressive and have higher associated risks. Older women are more likely to have better prognosis breast cancers, while younger women tend to have more aggressive types. Progesterone receptor is typically expressed in the vast majority of tumors. Overall, understanding the different subtypes of breast cancer is crucial in determining the appropriate treatment options and prognoses.

    • Demographic and Genetic Factors in Triple Negative Breast Cancer DevelopmentFactors such as age, genetic mutations, mammogram detection, and race play a role in the development and prevalence of triple negative breast cancer. Targeted therapies and breast density on mammograms also impact cancer risk.

      There are demographic and genetic differences that contribute to the development of triple negative breast cancer. This type of cancer tends to skew towards younger individuals and is often found in women with the BRCA one mutation. It is also more likely to present as a lump in the breast rather than being detected on a mammogram. Furthermore, there is a higher prevalence of triple negative breast cancer in African American women compared to Asian women. Another key point is the importance of targeted therapies, such as Herceptin, for HER2 positive breast cancer. Lastly, postmenopausal women with higher breast density on mammograms have a slightly greater risk of developing breast cancer, which may be linked to lifetime estrogen exposure.

    • Understanding Breast Cancer Risk Factors and Self-ExaminationBreast cancer risk factors may not always be obvious, and self-examination is not as crucial as being aware of changes in your body and seeking professional evaluation when needed.

      The risk factors for breast cancer are not as straightforward as they may seem. Smoking, while a major risk factor for many cancers, is not a significant factor for breast cancer. Obesity, on the other hand, is a relatively weak risk factor that is more closely associated with factors like insulin resistance and inflammation. Self-examination of the breast is not as crucial as having a general awareness and understanding of one's body. While lumps in the breasts are common and often benign, any changes or suspicious findings should be evaluated by a healthcare professional. When it comes to evaluating a suspicious lump, the appropriate next steps depend on the individual case and may involve further imaging or biopsies. Ultimately, seeking medical evaluation is key when any concerning changes are detected.

    • Advancements in Radiology for Accurate DiagnosesImproved radiology techniques provide accurate diagnoses, track changes over time, and offer reassurance to patients. Precancerous changes can be identified, treated, and monitored to prevent the progression of breast cancer.

      The quality of radiology has greatly improved, allowing for more accurate and reassuring diagnoses. Radiologists can identify benign changes in findings and track them over time, providing additional imaging or biopsies when necessary. Biopsies are often performed using image-guided needle techniques, providing precise targeting of breast lesions. The majority of biopsies result in a benign diagnosis, which brings reassurance to patients. This is similar to finding a polyp in the colon, which prompts further screening but is not cancer itself. It is important to understand that precancerous changes like ductal carcinoma in situ (DCIS) or atypical hyperplasia increase the risk of developing breast cancer but can be treated to prevent progression. These findings help identify patients at a higher risk of breast cancer, allowing for appropriate surveillance and intervention.

    • Precursor Lesions in Breast - Detection, Monitoring, and Treatment OptionsRegular surveillance and distinguishing between precancerous changes and actual breast cancer are important in managing precursor lesions. Screening methods play a crucial role in detecting early-stage breast cancer.

      There are precursor lesions in the breast that resemble cancer cells but have not fully developed into invasive breast cancer. These lesions, such as ALH and ADH, can be detected through mammograms or incidental findings. While many of these lesions will not progress further, regular surveillance is recommended to monitor any changes. In some cases, anti-estrogen medications like Tamoxifen can be used to slow down the development of malignant cells. Autopsy studies have not provided a clear prevalence of these precursor lesions in women, but they are relatively common. It's important to distinguish these precancerous changes from actual breast cancer, as the former may not require immediate treatment but should still be monitored. Hormone receptor-positive breast cancers often emerge from these precursor lesions, while triple negative breast cancers may have a different cell of origin. Screening methods like mammography, ultrasound, and MRI play a crucial role in detecting DCIS, the stage 0 breast cancer. Once DCIS is identified through a core biopsy, further steps need to be determined based on individual cases.

    • Treatment for DCIS often involves biopsy, lymph node mapping, and radiation therapy.Removing DCIS and checking for invasive breast cancer is crucial to prevent recurrence, and radiation therapy helps reduce the risk further.

      For most women diagnosed with DCIS, the first step in treatment is to undergo an excisional biopsy, where the affected tissue is surgically removed. This is important not only to remove the area of the breast that has DCIS but also because there is a chance of finding a small component of invasive breast cancer nearby, which upstages the diagnosis. Invasive breast cancers are routinely checked for spread to the armpit lymph nodes through a sentinel node biopsy. However, if the DCIS is extensive or if a mastectomy is preferred, sentinel lymph node mapping is also performed to ensure any potential occult areas of cancer in the removed breast are identified. Following DCIS removal, radiation therapy is often recommended to lower the risk of inbreast recurrence.

    • Treatments for DCIS in young womenRadiation therapy and antiestrogen therapy can effectively reduce the risk of recurrence in younger women with DCIS, but the decision to undergo treatment should consider individual risk perception and preferences.

      For younger healthy women with DCIS, radiation therapy and antiestrogen therapy are common treatments to reduce the risk of recurrence. However, these treatments often require many years of therapy and have manageable side effects. It is important to consider the pathology of the DCIS lesion, such as its grade and estrogen receptor status, as it can impact the risk of recurrence. Without treatment, the risk of invasive breast cancer ranges from 5 to 25%, depending on the characteristics of the lesion. Treatment, particularly radiation therapy, can significantly decrease this risk to the low single digits. However, treating DCIS has not been shown to affect mortality, and ongoing studies are exploring the possibility of less aggressive treatment approaches. Ultimately, the decision to undergo treatment should take into account the individual's perception of risk and their preferences.

    • Similarities and Safety Precautions in Radiation Treatments for Breast CancerModern radiation techniques for breast cancer greatly reduce the risk of coronary artery disease and other long-term side effects. Estrogen blockade can also help lower the risk of recurrence in specific cases.

      Radiation treatments for DCIS and invasive breast cancer are fundamentally the same. This means that the procedures and considerations for both types of cancer are very similar. One potential concern with radiation therapy for breast cancer is the risk of coronary artery disease, especially for left-sided breast cancers. However, modern radiation techniques have significantly reduced this risk. Radiation oncologists now use tangential field radiation, where the radiation beams come in from the sides and spare the underlying chest wall, lung, and heart. Additional precautions, such as breath holding techniques and specific blocks, further minimize the risk to the heart. While there may be some short-term side effects, such as skin damage and inflammation, the long-term risks are generally low. Furthermore, estrogen blockade can further reduce the risk of recurrence in ER positive DCIS.

    • Considering the use of antiestrogens and alternatives for DCIS treatment.Antiestrogens may have limited benefits in preventing DCIS recurrence, and alternative treatments such as shorter radiation and advanced imaging techniques should be considered and discussed with a healthcare provider.

      The use of antiestrogens after DCIS may only offer a relatively small benefit in preventing a recurrence. The baseline risk of recurrence after surgery alone has significantly decreased over time, making the absolute benefit of antiestrogen therapy smaller. While some patients may choose to pursue this treatment for various reasons, many women opt to forgo antiestrogen therapies and instead receive other treatments for DCIS. The question of whether antiestrogens can be used as an alternative to radiation therapy is still being studied. Additionally, the long-term consequences of tamoxifen, such as menopause-like symptoms and potential effects on bone health, should be carefully considered. Shorter radiation treatments and advancements in imaging techniques also offer promising options for women with DCIS. Ultimately, each woman's decision should be part of a comprehensive discussion with her healthcare provider.

    • Understanding LCIS: Pre-cancerous lesion increasing breast cancer risk but with low absolute risk and effective monitoring options.LCIS, although increasing the risk of breast cancer, has a relatively low absolute risk. Regular monitoring and antiestrogen therapy can be considered for further risk reduction.

      LCIS (lobular carcinoma in situ) is a pre-cancerous lesion that increases the risk of developing breast cancer. Studies have shown that women with LCIS have a higher risk of developing breast cancer compared to the general population. However, the absolute risk of developing breast cancer following a diagnosis of LCIS is still relatively low. Close monitoring, including regular mammograms, is generally recommended for women with LCIS. Additionally, some women may consider antiestrogen therapy, such as Tamoxifen, to lower their risk of breast cancer. While Tamoxifen has been shown to reduce the incidence of breast cancer in high-risk women, the overall survival benefit is not significant, partly because the risk is already low and effective treatments are available for breast cancer patients.

    • The nuanced decision of using Tamoxifen for breast cancer preventionDetailed conversations between physicians and patients are crucial to understanding the risks and benefits of using Tamoxifen as a preventative measure for breast cancer. Individualized decisions should be made based on each patient's circumstances.

      The decision to use Tamoxifen as a preventative measure for breast cancer is a nuanced one. While it may be effective in preventing certain types of breast cancer, it may not provide a significant survival benefit and can have significant side effects. It is crucial for physicians to have detailed conversations with patients to ensure they understand the risks and benefits before starting the medication. It is also important not to demonize antiestrogen medicines, as they have played a crucial role in curing breast cancer globally. However, when it comes to precancerous conditions like DCIS and LCIS, the benefits of these medications may not outweigh the potential risks. Ultimately, the decision should be individualized and based on the specific circumstances of each patient. Additionally, successful screening programs may lead to an increase in the diagnosis of precancerous lesions, which is a part of the nature of effective screening.

    • The Limitations and Advancements in Breast Cancer ScreeningBreast cancer screening methods such as mammograms and MRI have their own limitations and benefits, but advancements in the field have led to stricter standards and improved safety measures.

      While mammograms are the gold standard for breast cancer screening, they are not perfect and can be limited in their accuracy due to factors such as positioning, interpretation, and breast density. Ultrasound is sometimes used to support mammogram findings, but it is not universally recommended and has not been shown to dramatically improve outcomes. MRI is a highly sensitive tool for detecting abnormalities in the breast and is especially important for women at high risk, such as those with a strong family history or known genetic mutations. Both mammograms and MRI are assigned scores to indicate the likelihood of cancer, with BI RADS scores for mammograms and PI RADS scores for MRI. Overall, breast imaging has become a sophisticated field with strict standards for quality control and safety measures, similar to the aviation industry.

    • The importance of tissue biopsy in diagnosing and managing breast cancer.Mammogram screening and follow-up imaging are essential, but a tissue biopsy is crucial in determining the diagnosis and guiding breast cancer treatment.

      Mammogram screening and follow-up imaging cannot definitively determine whether a suspicious lesion is malignant or benign. The tissue biopsy obtained through a needle biopsy is crucial in defining the diagnosis and guiding breast cancer management. Different BI-RADS classifications indicate varying levels of suspicion, with BI-RADS 4 lesions having a higher chance of being invasive cancer. However, even if additional imaging or a biopsy is recommended, it does not automatically mean that the patient has breast cancer. A significant number of cases turn out to be precancerous or benign lesions. Additionally, the core biopsy provides information on the grade of the cancer cells, biomarker testing, proliferation rate, presence of tumor infiltrating lymphocytes, lymphovascular invasion, and other prognostic markers.

    • Importance of Early Detection in Breast Cancer TreatmentEarly detection increases the chance of breast-conserving surgery, but the decision between lumpectomy and mastectomy depends on various factors. Breast cancer staging and metastatic disease also play a role in treatment options.

      Early detection of breast cancer increases the likelihood of being a candidate for breast conserving surgery, also known as a lumpectomy. This surgery involves removing only the affected portion of the breast while leaving the rest intact. For most women undergoing a lumpectomy, a sentinel lymph node biopsy is also performed to determine if there is cancer present in the lymph nodes. However, the decision between a lumpectomy and a mastectomy is individualized and depends on factors such as family history, personal preference, and the size and location of the tumor. Breast cancer staging is determined by tumor size, lymph node involvement, and the biology of the tumor, which affects the risk of recurrence. It's important to note that while metastatic disease has a different prognosis, there are effective therapies available and some women are living long lives with metastatic breast cancer.

    • Stages of Breast Cancer and Treatment OptionsEarly detection of breast cancer and treatment at earlier stages greatly increases the chances of cure and long-term remission.

      The stage of breast cancer greatly impacts the chances of a cure. If the tumor is still confined to the breast and lymph nodes (stage 1, 2, or 3), there is a higher possibility of achieving a cure through a combination of surgery, radiation therapy, and drug therapy. However, once the cancer reaches stage 4 and spreads to other organs, the focus shifts to managing and treating the cancer rather than aiming for a cure. The median survival rate for stage 4 breast cancer is about 5 years, but it can vary depending on the subtype of the cancer. Early detection through aggressive screening plays a crucial role in increasing the chances of a cure, as catching smaller tumors without lymph node involvement greatly improves the chances of long-term remission.

    • The Importance of Mammography in Breast Cancer Detection and TreatmentEarly detection of breast cancer through mammography leads to better prognosis, improved outcomes, and the use of more effective drugs and fewer treatments. However, challenges exist in implementing screening programs, and attention is needed to address the growing global health issue of breast cancer. Adjuvant therapies are crucial to prevent recurrence.

      Mammography is a crucial tool in the early detection and treatment of breast cancer. Despite advancements in therapy, early detection is still associated with better long-term prognosis. It allows for the use of more effective drugs and fewer treatments, leading to improved outcomes. Moreover, breast cancer is now the most common diagnosis of cancer in women worldwide, highlighting the growing global health issue. However, there are challenges in implementing widespread screening programs, particularly in regions with insufficient medical resources. Artificial intelligence research shows promise in aiding breast imaging analysis, but the spread of breast cancer to becoming a global disease will require significant attention in the coming decades. Adjuvant therapies are recommended after surgery to prevent recurrence, as microscopic disease may still remain in the body.

    • Treating Breast Cancer: The Role of Additional TherapiesEarly detection, effective systemic therapy, and personalized drug treatment are essential in reducing breast cancer mortality and preventing recurrence. Radiation therapy is advised for early stage breast cancer, while genetic tests can guide chemotherapy decisions.

      Additional therapies, such as radiation therapy and drug therapy, play a crucial role in treating breast cancer. For women who are 70 years old or younger and have early stage breast cancer, radiation therapy is often advised. However, the decision to undergo radiation treatment depends on factors like the type of cancer and overall health status. Early detection through mammography and effective systemic therapy have significantly contributed to reducing breast cancer mortality in the past few decades. Drug therapy options vary depending on the size and characteristics of the tumor, including antiestrogen medicines for estrogen receptor positive tumors and drugs like Trastuzumab for HER2-positive tumors. Genetic tests can help determine whether chemotherapy is necessary, with many ER-positive breast cancer patients being able to avoid chemotherapy. Surgery, radiation therapy, and drug treatment are vital in preventing recurrence and improving long-term outcomes.

    • Hormone manipulations and advancements in breast cancer treatment.Hormone manipulations have been highly effective in treating breast cancer and have saved more lives than other treatments. Supportive care options and targeted therapies have also improved outcomes for patients.

      Hormone manipulations, specifically estrogen deprivation, have had a significant impact on treating breast cancer globally. These medications have saved more lives than other treatments like bone marrow transplants or immunotherapy. Additionally, there is now a wide range of drugs available for breast cancer treatment, including traditional chemotherapy drugs. While these drugs can have unpleasant side effects, supportive care in oncology has improved, offering medication for nausea, boosting white blood cell counts, and even preventing hair loss. In recent decades, there have been advancements in targeted therapies, such as immunotherapy and the development of drugs like Herceptin for HER2 positive breast cancer. Furthermore, the use of genomics and hormonal axis manipulation has helped tailor treatment plans, allowing many women with estrogen receptor positive breast cancer to avoid unnecessary chemotherapy.

    • The Advantages and Use of Neoadjuvant Therapy in Breast Cancer TreatmentNeoadjuvant therapy before surgery offers benefits such as tumor shrinkage, better surgical outcomes, important response information, customized treatments, and improved overall outcomes for breast cancer patients.

      Neoadjuvant therapy, which involves giving drug therapy before surgery, has several advantages in the treatment of breast cancer. It allows the tumor to shrink, making it possible for patients to undergo less invasive surgery with better cosmetic results. Additionally, neoadjuvant therapy provides valuable information on how well the tumor responds to treatment, with a complete response being a favorable prognostic finding. Patients who achieve a complete response have a lower risk of recurrence and better overall outcomes. Furthermore, neoadjuvant therapy can help tailor treatment to individual patients based on their response, allowing for customized and targeted therapies to overcome residual disease. This approach is similar to the use of androgen therapy in prostate cancer, where hormonal manipulation is used to control tumor growth. However, the use of estrogen replacement therapy in breast cancer differs due to the biology of the disease, with antiestrogen medications being the standard of care for most patients.

    • Managing Side Effects and Treatment Options for Breast CancerAlthough breast cancer treatment can have side effects, the benefits outweigh these symptoms. Different treatment options are available based on tumor types, and genetic testing helps patients make informed decisions for prevention.

      Managing the side effects of breast cancer treatment is an important part of the work of oncology teams. Although estrogen deprivation can lead to unpleasant symptoms like hot flashes, night sweats, and bone and joint stiffness, the benefits of treatment outweigh these side effects. For women with ER-positive tumors, antiestrogens are usually not omitted due to their effectiveness in hormone-sensitive tumors. For women with triple-negative breast cancer, antiestrogens are not commonly recommended, but other nonhormonal options are available to address specific symptoms. Hormone replacement therapy is carefully tailored to each patient's needs, with nonhormonal options and localized estrogen preparations often preferred. However, for some women, hormone therapy is necessary for a better quality of life, and individual conversations are held to address their unique concerns. Additionally, about 8 to 10% of breast cancer cases are related to specific hereditary gene mutations like BRCA 1 and BRCA 2. Genetic testing is now standard, and patients with these mutations may consider preventative measures such as mastectomy or prophylactic oophorectomy to reduce their risk of developing breast or ovarian cancer.

    • The Importance of Genetic Testing for Women with Breast CancerGenetic testing is crucial for women with breast cancer, as mutations other than BRCA 1 and 2 can also increase the risk of various cancers. Test results inform treatment and prevention approaches, regardless of family history.

      Genetic testing is becoming increasingly important for women diagnosed with breast cancer. While BRCA 1 and 2 mutations are well-known for increasing the risk of breast, ovarian, prostate, and pancreatic cancers, there are other mutations, such as PALB 2, CHEK2, and ATM, that also play a role. These mutations may not be as common as BRCA 1 and 2, but they still have significant implications for treatment and prevention approaches. As a result, more women are being recommended for genetic testing after a breast cancer diagnosis. A negative result can provide reassurance for both the patient and their family, while a positive result can lead to different management strategies. It's important to recognize that familial patterns and the penetrance of these mutations can vary, so genetic testing should be considered even with a less obvious family history.

    • Genetic testing and multidisciplinary care for breast cancer patients and their familiesGenetic testing can provide important information for breast cancer patients and their families, while multidisciplinary care ensures comprehensive and coordinated treatment for the best possible outcomes.

      Following a breast cancer diagnosis, genetic testing for family members is becoming more prevalent, and there may soon be universal genetic testing for affected individuals. For women with a strong family history of cancers, meeting with genetic counselors and pursuing testing is appropriate and can help determine if they need more aggressive screening and surveillance. While there are commercial tests available, it is recommended to seek out a genetic counselor or a cancer center for specific tests from different companies. Additionally, multidisciplinary care is crucial for effective breast cancer treatment. Cancer centers bring together various specialists under one roof to ensure coordinated and comprehensive care, similar to how various professionals in the aviation industry work together for a smooth flying experience. Communication and teamwork among healthcare providers are essential for delivering the best possible care to breast cancer patients.

    • The Importance of Collaboration and Teamwork in Breast Cancer CareSeek out professionals specializing in cancer care, get a second opinion, and evaluate the quality of care for reassurance and comfort during the medical journey of breast cancer.

      Collaboration and teamwork are crucial for women diagnosed with breast cancer. The medical journey often involves different teams, such as surgical, radiation, and oncology, working together to provide comprehensive care. It's important for these teams to communicate effectively and regularly so that everyone is on the same page. While prestigious cancer centers like Dana Farber offer specialized multidisciplinary care, it's worth noting that good breast cancer care can be found in many parts of the country. Seeking out professionals who specialize in cancer care and getting a second opinion can provide reassurance and comfort. Key areas to consider when evaluating the quality of care include the thoroughness of pathology and radiology reviews, as well as the judicious use of treatments tailored to individual cases.

    • Importance of Collaboration and Teamwork in Breast Cancer TreatmentCollaboration between breast surgeon and reconstructive surgery teams is essential for better long-term outcomes for breast cancer patients. Seeking a second opinion and ensuring high-quality pathology are important patient rights. Men should also be vigilant about any changes in their chest or breast tissue.

      Access to high-quality plastic and reconstructive surgeons is critical for patients undergoing breast cancer treatment. The collaboration and teamwork between the breast surgeon and the reconstructive surgery teams can greatly impact how people look and feel years after their diagnosis. It is important for patients to ensure that the healthcare professionals they are working with are used to working together and are coming up with a unified treatment plan. If there is a lack of collaboration or a absence of a monthly tumor board, it may be beneficial for patients to consider seeking a second opinion or exploring other options. Additionally, patients should be aware of their right to request a section of their tissue specimen to be sent to another pathologist for review, as the quality of pathology is foundational to cancer care. It is also crucial for men to recognize that they can develop breast cancer and seek evaluation if any changes are noticed in the chest or breast tissue.

    • Advancements in Breast Cancer Treatment and CareEarly detection, multi modality therapies, and development of better drugs have improved outcomes for breast cancer patients. Men with breast cancer now have alternative treatments available. Patients should advocate for themselves during therapy.

      There is progress in the treatment of breast cancer, and women are experiencing better outcomes. Early detection plays a crucial role in improving survival rates, and multi modality therapies are proving to be effective in managing the disease. The development of better drugs for both early and advanced stages of breast cancer is also contributing to more favorable outcomes for patients. Men with breast cancer are now being offered alternative treatments, such as antiestrogen medicine, and specialized clinics are available to address their specific needs. It is important for individuals diagnosed with breast cancer to ask the right questions and advocate for themselves during their therapy. Overall, there is a sense of optimism in the field of breast cancer care, although it remains a significant public health and personal challenge.

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    David Allison, a leading expert in obesity and nutrition, quantitative genetics, clinical trials, and research methodology, returns to The Drive to explore the evolving landscape of nutrition science and obesity treatment. In this episode, David begins by discussing the intricate relationship between nutrition, obesity, and body composition, emphasizing the multifaceted impacts of food beyond mere calorie intake. David provides a critical analysis of the complexities in nutrition research and their practical implications for tackling obesity. He critiques historical public health policies, addresses the trust issues plaguing nutrition science, and underscores the need for a paradigm shift to more effectively combat obesity. The conversation also delves into the rise of GLP-1 receptor agonists like Ozempic and Mounjaro, exploring their ethical and practical considerations in obesity treatment. The episode concludes with an in-depth look at protein intake recommendations and highlights the significant research gaps that remain in the field.

    We discuss:

    • The complex relationship between nutrition, body weight, and body composition [2:30];
    • The slow progress in addressing obesity and public health despite substantial effort and investment [7:30];
    • The very limited success of public health initiatives in curbing obesity [17:15];
    • The evolving landscape of obesity research: public health initiatives and the impact of pharmacological success [26:30];
    • Rethinking obesity solutions: the need for a paradigm shift [32:45];
    • Understanding environmental triggers and embracing a balanced approach to addressing obesity that includes both pharmacological treatments and realistic lifestyle changes [41:45];
    • The need for higher standards in obesity research [51:45];
    • The rapid success of GLP-1 receptor agonists for weight loss: a discussion on the societal impact and controversy of their growing usage [1:02:15];
    • The ethical and practical considerations of obesity drugs: risks, benefits, and motivations for usage [1:11:30];
    • The use of GLP-1 agonists by athletes as performance enhancers [1:23:45];
    • Unanswered questions about protein intake and health [1:30:45];
    • Future research needed to understand basic questions around protein intake [1:45:00];
    • David’s weekly newsletter: “Obesity and Energetics Offerings” [1:50:45]; and
    • More.

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    The Peter Attia Drive
    enAugust 19, 2024

    #313 - AMA #62: Protein’s impact on appetite and weight management, and uric acid's link to disease and how to manage levels

    #313 - AMA #62: Protein’s impact on appetite and weight management, and uric acid's link to disease and how to manage levels

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    In this “Ask Me Anything” (AMA) episode, Peter dives into two important health topics: uric acid and protein, examining them from unique perspectives. For uric acid, he explores its metabolic role and connection to various diseases, focusing on the potential causal link with cardiovascular disease. He also discusses factors influencing uric acid levels, such as diet, genetics, and lifestyle, providing practical tips for effective management. Shifting to protein, Peter delves into its role in appetite and weight management, the consequences of insufficient protein, and the “protein leverage hypothesis” linking protein deficiency to obesity. He covers optimal protein intake and its impact on energy expenditure, and he compares the satiety effects of solid versus liquid protein. Finally, Peter shares his strategy for incorporating protein into a comprehensive weight management plan.

    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 #62 show notes page. If you are not a subscriber, you can learn more about the subscriber benefits here.

    We discuss:

    • Overview of episode topics (and an important discussion on fanny packs) [2:00];
    • Understanding uric acid: its role in metabolic processes, its association with gout and kidney stones, its impact on blood pressure, and more [6:00];
    • Non-modifiable factors that influence uric acid levels [11:00];
    • Modifiable factors that influence uric acid levels [14:15];
    • Association between high uric acid levels and cardiovascular disease [20:00];
    • Evidence suggesting a causal link between high uric acid levels and cardiovascular disease [24:00];
    • Inconclusive evidence about the cardiovascular benefits of lowering uric acid pharmacologically [28:15];
    • Exploring the potential risks of low uric acid levels in neurodegenerative diseases [37:00];
    • Managing uric acid levels: dietary interventions and pharmacological approaches [42:00];
    • The impact of protein on appetite and weight management [44:00];
    • The consequences of insufficient protein on eating behaviors and satiety [52:15];
    • The relationship between protein deficiency and obesity: exploring the “protein leverage hypothesis” [57:15];
    • The impact of protein intake on energy expenditure [1:02:15];
    • Determining optimal protein intake to avoid deficiency and support health [1:05:45];
    • The role of different amino acids and protein sources in promoting satiety [1:08:15];
    • Comparing the satiety effects of solid vs. liquid protein sources [1:10:30];
    • Peter’s framework for incorporating protein intake into a strategy for controlling body weight [1:12:00]; and
    • More.

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    The Peter Attia Drive
    enAugust 12, 2024

    #312 - A masterclass in lactate: Its critical role as metabolic fuel, implications for diseases, and therapeutic potential from cancer to brain health and beyond | George A. Brooks, Ph.D.

    #312 - A masterclass in lactate: Its critical role as metabolic fuel, implications for diseases, and therapeutic potential from cancer to brain health and beyond | George A. Brooks, Ph.D.

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    George A. Brooks is a renowned professor of integrative biology at UC Berkeley. Known for his groundbreaking "lactate shuttle" theory proposed in the 1980s, George revolutionized our understanding of lactate as a crucial fuel source rather than just a byproduct of exercise. In this episode, George clarifies common misconceptions between lactate and lactic acid, delves into historical perspectives, and explains how lactate serves as a fuel for the brain and muscles. He explores the metabolic differences in exceptional athletes and how training impacts lactate flux and utilization. Furthermore, George reveals the significance of lactate in type 2 diabetes, cancer, and brain injuries, highlighting its therapeutic potential. This in-depth conversation discusses everything from the fundamentals of metabolism to the latest research on lactate's role in gene expression and therapeutic applications.

    We discuss:

    • Our historical understanding of lactate and muscle metabolism: early misconceptions and key discoveries [3:30];
    • Fundamentals of metabolism: how glucose is metabolized to produce ATP and fuel our bodies [16:15];
    • The critical role of lactate in energy production within muscles [24:00];
    • Lactate as a preferred fuel during high-energy demands: impact on fat oxidation, implications for type 2 diabetes, and more [30:45];
    • How the infusion of lactate could aid recovery from traumatic brain injuries (TBI) [43:00];
    • The effects of exercise-induced lactate [49:30];
    • Metabolic differences between highly-trained athletes and insulin-resistant individuals [52:00];
    • How training enhances lactate utilization and facilitates lactate shuttling between fast-twitch and slow-twitch muscle fibers [58:45];
    • The growing recognition of lactate and monocarboxylate transporters (MCT) [1:06:00];
    • The intricate pathways of lactate metabolism: isotope tracer studies, how exceptional athletes are able to utilize more lactate, and more [1:09:00];
    • The role of lactate in cancer [1:23:15];
    • The role of lactate in the pathophysiology of various diseases, and how exercise could mitigate lactate's carcinogenic effects and support brain health [1:29:45];
    • George’s current research interests involving lactate [1:37:00];
    • Questions that remain about lactate: role in gene expression, therapeutic potential, difference between endogenous and exogenous lactate, and more [1:50:45]; and
    • More.

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    The Peter Attia Drive
    enAugust 05, 2024

    #311 ‒ Longevity 101: a foundational guide to Peter's frameworks for longevity, and understanding CVD, cancer, neurodegenerative disease, nutrition, exercise, sleep, and more

    #311 ‒ Longevity 101: a foundational guide to Peter's frameworks for longevity, and understanding CVD, cancer, neurodegenerative disease, nutrition, exercise, sleep, and more

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    In this special episode, Peter provides a comprehensive introduction to longevity, perfect for newcomers or those looking to refresh their knowledge. He lays out the foundational concepts of lifespan, healthspan, and the marginal decade. Additionally, Peter discusses the four main causes of death and their prevention, as well as detailing the five key strategies in his longevity toolkit to improve lifespan and healthspan. Detailed show notes provide links for deeper exploration of these topics, making it an ideal starting point for anyone interested in understanding and improving their longevity.

    We discuss:

    • Key points about starting exercise as an older adult [2:45];
    • Overview of episode topics and structure [1:45];
    • How Peter defines longevity [3:45];
    • Why healthspan is a crucial component of longevity [11:15];
    • The evolution of medicine from medicine 1.0 to 2.0, and the emergence of medicine 3.0 [15:30];
    • Overview of atherosclerotic diseases: the 3 pathways of ASCVD, preventative measures, and the impact of metabolic health [26:00];
    • Cancer: genetic and environmental factors, treatment options, and the importance of early and aggressive screening [33:15];
    • Neurodegenerative diseases: causes, prevention, and the role of genetics and metabolic health [39:30];
    • The spectrum of metabolic diseases [43:15];
    • Why it’s never too late to start thinking about longevity [44:15];
    • The 5 components of the longevity toolkit [46:30];
    • Peter’s framework for exercise—The Centenarian Decathlon [47:45];
    • Peter’s nutritional framework: energy balance, protein intake, and more [58:45];
    • Sleep: the vital role of sleep in longevity, and how to improve sleep habits [1:08:30];
    • Drugs and supplements: Peter’s framework for thinking about drugs and supplements as tools for enhancing longevity [1:13:30];
    • Why emotional health is a key component of longevity [1:17:00];
    • Advice for newcomers on where to start on their longevity journey [1:19:30]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJuly 29, 2024

    #310 - The relationship between testosterone and prostate cancer, testosterone replacement therapy, and tools for predicting cancer aggressiveness and guiding therapy | Ted Schaeffer, M.D., Ph.D.

    #310 - The relationship between testosterone and prostate cancer, testosterone replacement therapy, and tools for predicting cancer aggressiveness and guiding therapy | Ted Schaeffer, M.D., Ph.D.

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    Ted Schaeffer is an internationally recognized urologist specializing in prostate cancer and a returning guest on The Drive. In this episode, Ted provides insights into the role testosterone plays, or doesn't play, in the initiation and progression of prostate cancer. He unpacks the findings and limitations of the recent TRAVERSE trial, exploring the complex relationship between testosterone and prostate cancer. Ted delves into the molecular nature of prostate cancer, explaining the androgen receptor saturation theory and the potential impact of testosterone on cancer growth. He also discusses the use of the Decipher test to predict cancer aggressiveness and guide targeted treatment. Furthermore, Ted shares how he counsels patients regarding testosterone replacement therapy (TRT), including its safe administration in patients with low-grade prostate cancer. Additionally, he highlights advancements in prostate cancer therapies and biomarkers that help develop precise treatment strategies while minimizing the need for broad androgen deprivation therapy.

    We discuss:

    • Background on the TRAVERSE trial: insights into exogenous testosterone and prostate cancer risk [3:00];
    • The androgen receptor saturation theory: how different organs respond to varying levels of testosterone [10:30];
    • The relationship between testosterone levels and prostate cancer aggressiveness: how aggressive prostate tumors have lower androgen receptor activity and rely on different growth mechanisms [16:15];
    • Using the Decipher score to assess prostate cancer aggressiveness and guide personalized treatment strategies [23:45];
    • Considerations for testosterone replacement therapy: how Ted counsels patients, how TRT can be safely administered in patients with low-grade prostate cancer, and more [31:15];
    • Advancements in prostate cancer therapies and PSA as a biomarker for precise treatment decisions, minimizing the need for broad androgen deprivation therapy [38:30]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJuly 22, 2024

    #309 ‒ AI in medicine: its potential to revolutionize disease prediction, diagnosis, and outcomes, causes for concern in medicine and beyond, and more | Isaac Kohane, M.D., Ph.D.

    #309 ‒ AI in medicine: its potential to revolutionize disease prediction, diagnosis, and outcomes, causes for concern in medicine and beyond, and more | Isaac Kohane, M.D., Ph.D.

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    Isaac "Zak" Kohane, a pioneering physician-scientist and chair of the Department of Biomedical Informatics at Harvard Medical School, has authored numerous papers and influential books on artificial intelligence (AI), including The AI Revolution in Medicine: GPT-4 and Beyond. In this episode, Zak explores the evolution of AI, from its early iterations to the current third generation, illuminating how it is transforming medicine today and unlocking astonishing possibilities for the future. He shares insights from his unconventional journey and early interactions with GPT-4, highlighting significant AI advancements in image-based medical specialties, early disease diagnosis, and the potential for autonomous robotic surgery. He also delves into the ethical concerns and regulatory challenges of AI, its potential to augment clinicians, and the broader implications of AI achieving human-like creativity and expertise.

    We discuss:

    • Zak’s unconventional journey to becoming a pioneering physician-scientist, and his early interactions with GPT-4 [2:15];
    • The evolution of AI from the earliest versions to today’s neural networks, and the shifting definitions of intelligence over time [8:00];
    • How vast data sets, advanced neural networks, and powerful GPU technology have driven AI from its early limitations to achieving remarkable successes in medicine and other fields [19:00];
    • An AI breakthrough in medicine: the ability to accurately recognize retinopathy [29:00];
    • Third generation AI: how improvements in natural language processing significantly advanced AI capabilities [32:00];
    • AI concerns and regulation: misuse by individuals, military applications, displacement of jobs, and potential existential concerns [37:30];
    • How AI is enhancing image-based medical specialties like radiology [49:15];
    • The use of AI by patients and doctors [55:45];
    • The potential for AI to augment clinicians and address physician shortages [1:02:45];
    • The potential for AI to revolutionize early diagnosis and prediction of diseases: Alzheimer’s disease, CVD, autism, and more [1:08:00];
    • The future of AI in healthcare: integration of patient data, improved diagnostics, and the challenges of data accessibility and regulatory compliance [1:17:00];
    • The future of autonomous robotic surgery [1:25:00];
    • AI and the future of mental health care [1:31:30];
    • How AI may transform and disrupt the medical industry: new business models and potential resistance from established medical institutions [1:34:45];
    • Potential positive and negative impacts of AI outside of medicine over the next decade [1:38:30];
    • The implications of AI achieving a level of creativity and expertise comparable to exceptional human talents [1:42:00];
    • Digital immortality and legacy: the potential to emulate an individual's personality and responses and the ethical questions surrounding it [1:45:45];
    • Parting thoughts [1:50:15]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJuly 15, 2024

    Zone 2 training: impact on longevity and mitochondrial function, how to dose frequency and duration, and more | Iñigo San-Millán, Ph.D. (#201 rebroadcast)

    Zone 2 training: impact on longevity and mitochondrial function, how to dose frequency and duration, and more | Iñigo San-Millán, Ph.D. (#201 rebroadcast)

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    Iñigo San-Millán is an internationally renowned applied physiologist and a previous guest on The Drive. His research and clinical work focuses on exercise-related metabolism, metabolic health, diabetes, cancer metabolism, nutrition, sports performance, and critical care. In this episode, Iñigo describes how his work with Tour de France winner Tadej Pogačar has provided insights into the amazing potential of elite athletes from a performance and metabolic perspective. He speaks specifically about lactate levels, fat oxidation, how carbohydrates in food can affect our lactate and how equal lactate outputs between an athlete and a metabolically unhealthy individual can mean different things. Next, he discusses how Zone 2 training boosts mitochondrial function and impacts longevity. He explains the different metrics for assessing one’s Zone 2 threshold and describes the optimal dose, frequency, duration, and type of exercise for Zone 2. Additionally, he offers his thoughts on how to incorporate high intensity training (Zone 5) to optimize health, as well as the potential of metformin and NAD to boost mitochondrial health. Finally, he discusses insights he’s gathered from studying the mitochondria of long COVID patients in the ICU.

    We discuss:

    • The amazing potential of cyclist Tadej Pogačar [2:00];
    • Metrics for assessing athletic performance in cyclists and how that impacts race strategy [7:30];
    • The impact of performance-enhancing drugs and the potential for transparency into athletes’ data during competition [16:15];
    • Tadej Pogačar’s race strategy and mindset at the Tour de France [23:15];
    • Defining Zone 2, fat oxidation, and how they are measured [26:00];
    • Using fat and carbohydrate utilization to calculate the mitochondrial function and metabolic flexibility [35:00];
    • Lactate levels and fat oxidation as it relates to Zone 2 exercise [39:15];
    • How moderately active individuals should train to improve metabolic function and maximize mitochondrial performance [51:00];
    • Bioenergetics of the cell and what is different in elite athletes [56:30];
    • How the level of carbohydrate in the diet and ketogenic diets affects fuel utilization and power output during exercise [1:07:45];
    • Glutamine as a source for making glycogen—insights from studying the altered metabolism of ICU patients [1:14:15];
    • How exercise mobilizes glucose transporters—an important factor in diabetic patients [1:20:15];
    • Metrics for finding Zone 2 threshold—lactate, heart rate, and more [1:24:00];
    • Optimal Zone 2 training: dose, frequency, duration, and type of exercise [1:40:30];
    • How to incorporate high intensity training (Zone 5) to increase VO2 max and optimize fitness [1:50:30];
    • Compounding benefits of Zone 2 exercise and how we can improve metabolic health into old age [2:01:00];
    • The effects of metformin, NAD, and supplements on mitochondrial function [2:04:30];
    • The role of lactate and exercise in cancer [2:12:45];
    • How assessing metabolic parameters in long COVID patients provides insights into this disease [2:18:30];
    • The advantages of using cellular surrogates of metabolism instead of VO2 max for prescribing exercise [2:25:00];
    • Metabolomics reveals how cellular metabolism is altered in sedentary individuals [2:33:00];
    • Cellular changes in the metabolism of people with diabetes and metabolic syndrome [2:38:30]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJuly 08, 2024

    #308 - AMA #61: Sun exposure, sunscreen, and skin health: relationship between sun exposure and skin cancer, vitamin D production, and photoaging, how to choose a sunscreen, and more

    #308 - AMA #61: Sun exposure, sunscreen, and skin health: relationship between sun exposure and skin cancer, vitamin D production, and photoaging, how to choose a sunscreen, and more

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    In this “Ask Me Anything” (AMA) episode, Peter delves into two topics that have generated a lot of questions over the years: skin cancer and sunscreen. He begins by exploring the basics of UV radiation, discussing its effects on vitamin D conversion, photoaging, and its role in skin cancer. He examines various skin types, discussing their implications for sun exposure and vitamin D levels, as well as how to determine where you fall on the skin type scale. He then delves into the various types of skin cancer, with a particular emphasis on melanoma, exploring its complex relationship with UV exposure and other contributing risk factors. Additionally, he covers tanning beds, the importance of early skin cancer detection through regular skin checks, and the often confusing topic of sunscreen. He explains how sunscreen affects UV radiation and skin cancer risk, what SPF levels to choose, the differences between organic and mineral sunscreens, and what to consider when selecting the best sunscreen for your needs.

    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 #61 show notes page. If you are not a subscriber, you can learn more about the subscriber benefits here.

    We discuss:

    • The impact of UV radiation on the skin [2:00];
    • Understanding solar UV: from the electromagnetic spectrum to skin health [3:45];
    • The role of sunlight in vitamin D production [8:30];
    • Factors contributing to vitamin D deficiency: insufficient UV exposure, magnesium levels, and more [9:45];
    • Sun exposure needs for different skin types, and the limitations of current studies in defining vitamin D deficiency [12:45];
    • The acute and long-term effects of excessive UV exposure: sunburn, photoaging, and the increased risk of skin cancer [15:30];
    • Types of skin cancer and associations with UV exposure [17:45];
    • The complex relationship between melanoma and UV exposure [22:15];
    • Why UV exposure alone doesn’t necessarily explain the risk for melanoma [25:15];
    • Other risk factors for melanoma [29:15];
    • Tanning beds and skin cancer risk [34:45];
    • Balancing sun exposure: benefits and risks [38:15];
    • Tattoos and sun exposure [40:30];
    • The importance of regular skin checks, dermatologists, and emerging technologies showing promise for early detection of cancer [41:45];
    • Self-skin checks: what to look for [46:30];
    • Prevalence of skin cancer and the importance of early detection [49:30];
    • Summary of the major risk factors for melanoma [54:15];
    • The role of sunscreen in reducing skin cancer risk [55:45];
    • How sunscreen works, the differences between chemical and mineral sunscreens, an explanation of SPF, and more [58:30];
    • How to determine the appropriate sunscreen SPF to use based on the UV index [1:04:45];
    • Choosing the right sunscreen for your individual needs [1:07:00];
    • The impact of water and perspiration on sunscreen effectiveness [1:12:00];
    • Chemical vs. mineral sunscreens: safety concerns and recommendations [1:14:00];
    • Concerns about hormone effects from chemical sunscreens [1:19:15];
    • Sunscreen summary: skin types, key considerations, recommended brands, and more [1:23:15]; and
    • More.

    Connect With Peter on TwitterInstagramFacebook and YouTube

    The Peter Attia Drive
    enJuly 01, 2024

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