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    #193 - AMA #31: Heart rate variability (HRV), alcohol, sleep, and more

    enJanuary 31, 2022
    What was the main topic of the podcast episode?
    Summarise the key points discussed in the episode?
    Were there any notable quotes or insights from the speakers?
    Which popular books were mentioned in this episode?
    Were there any points particularly controversial or thought-provoking discussed in the episode?
    Were any current events or trending topics addressed in the episode?

    Podcast Summary

    • Discussing HRV and Alcohol: The Connection and ControversyThis episode explores the impact of alcohol on heart rate variability (HRV) and sleep, shedding light on conflicting literature and answering listener questions.

      Host Peter Atia is joined by Bob Kaplan for the last time in this series to discuss these topics, which have garnered numerous questions from listeners over the past few years. While the episode focuses on HRV and ethanol's connection, they also delve into the conflicting literature regarding the health benefits of alcohol consumption. This informative episode is essential for anyone interested in understanding the role of alcohol in their health, especially regarding its impact on HRV and sleep. Unfortunately, this episode was recorded in audio format only.

    • Understanding Heart Rate Variability: A Deep DiveHeart Rate Variability (HRV) is a crucial indicator of heart health and overall well-being, representing the variation in time between heartbeats. Listen to today's AMA episode for insights into its significance and its relationship with alcohol consumption.

      Today's episode of AMA (Ask Me Anything) focuses on Heart Rate Variability (HRV), a topic that has been frequently requested by listeners. HRV refers to the variation in time between heartbeats, measured in milliseconds. While the concept might be difficult to grasp without visuals, it's an essential aspect of understanding heart health and overall well-being. The hosts answer various listener questions about HRV, providing valuable insights into its significance and its relationship with alcohol consumption. If you're not a subscriber, you can get a sneak peek and then choose to subscribe for the full content. In today's episode, there are no videos or screen sharing, making the show notes an essential resource for accessing any graphs or images mentioned during the discussion.

    • Measuring Heart Rate Variability for Insights into Cardiovascular HealthHeart rate variability (HRV) is a valuable metric for assessing cardiovascular health and overall well-being. It reflects the body's ability to adapt to stressors and maintain homeostasis, with higher HRV indicating better cardiovascular function and overall health.

      Heart rate variability (HRV), which is the variation in time between heartbeats, provides valuable information beyond just heart rate. Measuring HRV involves calculating the root mean square of the successive differences between heartbeats, resulting in a value reported in milliseconds. Wearable devices and EKGs can be used to measure HRV. This metric is important because it reflects the body's ability to adapt to stressors and maintain homeostasis. A higher HRV indicates better cardiovascular function and overall health. Lower HRV may indicate stress, fatigue, or underlying health issues. By monitoring HRV, individuals can gain insights into their body's response to various factors, such as physical activity, emotional stress, or illness. Ultimately, HRV serves as a valuable indicator of cardiovascular health and overall well-being.

    • HRV and Autonomic Nervous System ConnectionHRV is a measure of heartbeat variation influenced by the autonomic nervous system, which regulates functions below the surface. The sympathetic system increases heart rate and energy, while the parasympathetic system conserves energy and aids digestion.

      Heart Rate Variability (HRV), a measure of the variation in heartbeats, is most significant when the body is at rest. This variability is influenced by the autonomic nervous system, which regulates functions below the surface without conscious thought. The autonomic nervous system is further divided into the sympathetic and parasympathetic systems. The sympathetic system is responsible for the "fight or flight" response, increasing heart rate and energy levels, while the parasympathetic system, or "rest and digest," conserves energy, aids in digestion, and slows heart rate. Understanding HRV and its relationship to the autonomic nervous system can provide insights into overall health and wellbeing.

    • Impact of Sympathetic and Parasympathetic Systems on Heart Rate VariabilityThe sympathetic system increases heart rate and decreases HRV, while the parasympathetic system slows down heart rate and increases HRV. Understanding their relationship can provide insights into body's responses to stress and relaxation.

      The sympathetic and parasympathetic systems in our bodies have a significant impact on heart rate variability (HRV). The sympathetic system, also known as the "fight or flight" system, prepares us for danger by making energy more available, dilating pupils, and increasing heart rate. Conversely, the parasympathetic system, or the "rest and digest" system, slows down non-essential functions and allows the body to relax. When the sympathetic system is activated, HRV decreases because the heart beats more consistently and rapidly. On the other hand, when the parasympathetic system takes control, HRV increases due to the slower heart rate and greater variability between beats. This concept can be understood intuitively: when our heart rate is fast, there is less time between beats, leaving less room for variation. Conversely, when our heart rate is slow, there is more time between beats, allowing for greater variation. Understanding the relationship between the sympathetic and parasympathetic systems and HRV can provide valuable insights into our body's responses to stress and relaxation. By monitoring HRV, we can gain a better understanding of our body's state of arousal and take steps to promote optimal health and wellbeing.

    • Understanding Heart Rate Variability and Its SignificanceHRV is a valuable health metric linked to resting heart rate, providing insights into stress, fatigue, and overall health. Join The Drive's membership program for exclusive content to deepen your knowledge.

      Heart Rate Variability (HRV) is an important health metric, and there is a positive correlation between HRV and resting heart rate. However, the exact strength of this correlation is not clearly defined. HRV provides valuable information about our health, as a high or low HRV can indicate stress, fatigue, or other health issues. To gain a deeper understanding of HRV and its significance, becoming a member of The Drive's membership program offers exclusive content, including complete AMA episodes, comprehensive podcast show notes, access to a private podcast feed, discount codes for recommended products, and additional benefits. These resources can help individuals learn more about HRV, its importance, and how to use it to improve their overall health. If you're already a member, make sure to download the member-only podcast feed to access the full AMA episodes.

    • Disclaimer and Social Media EngagementListen to Dr. Atia's podcast for informative health discussions, engage with him on social media, but always consult healthcare professionals for medical advice.

      This podcast, hosted by Dr. Peter Atia, provides valuable health-related information but is not a substitute for professional medical advice. Dr. Atia encourages listeners to engage with him on social media platforms like Twitter, Instagram, and Facebook, and to leave reviews on podcast players. However, the information shared on the podcast is intended for general informational purposes only and should not be used as a replacement for consulting healthcare professionals for medical conditions. It's important to seek professional advice for any health concerns. Dr. Atia also discloses any conflicts of interest and provides a list of companies he invests in or advises on his website. The podcast is not meant to establish a doctor-patient relationship or to provide medical advice, diagnosis, or treatment. Listeners should use the information at their own risk and not disregard or delay seeking medical advice from healthcare professionals.

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    • 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

    View the Show Notes Page for This Episode

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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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    Why FOMO Keeps You Drinking More Than You Want To

    Why FOMO Keeps You Drinking More Than You Want To

    Buy Breaking the Bottle Legacy: How to Change Your Drinking Habits and Create A Peaceful Relationship with Alcohol on Amazon. 

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    You can grab two free chapters of my upcoming book here!

    Have you grabbed your free e-book, "Alcohol Truths: How Much is Safe?" Get it here. 

    Low risk drinking guidelines from the NIAAA:

    Healthy men under 65:

    No more than 4 drinks in one day and no more than 14 drinks per week.

    Healthy women (all ages) and healthy men 65 and older: No more than 3 drinks in one day and no more than 7 drinks per week.

    One drink is defined as 12 ounces of beer, 5 ounces of wine, or 1.5 ounces of 80-proof liquor. So remember that a mixed drink or full glass of wine are probably more than one drink.

    Abstinence from alcohol Abstinence from alcohol is the best choice for people who take medication(s) that interact with alcohol, have health conditions that could be exacerbated by alcohol (e.g. liver disease), are pregnant or may become pregnant or have had a problem with alcohol or another substance in the past.

    Benefits of “low-risk” drinking Following these guidelines reduces the risk of health problems such as cancer, liver disease, reduced immunity, ulcers, sleep problems, complications of existing conditions, and more. It also reduces the risk of depression, social problems, and difficulties at school or work.

    This week on the podcast I'm talking about FOMO and why it keeps us drinking more than we want to. 

    When I use the acronym FOMO what do you think of? 

     

    Do you think of comparing yourself to others?  Definitely this is the genesis of FOMO and even though it’s become a trendy, Meme-producing word these days it’s actually nothing new. 

    I actually explain it in my book, here’s what I said: “ The fear about what other people think is actually rooted in another survival instinct in our primitive brains. Our primitive brains evolved to associate our emotions with necessary actions for the survival of our species. Generally speaking this means avoiding pain and seeking pleasure. For our archaic ancestors, the Neanderthals, being a member of the tribe was literally a matter of life or death and as humans evolved we have become more socially connected.

     "Mammals are more socially connected than reptiles, primates

    more than other mammals, and humans more than other

    primates. What this suggests is that becoming more socially

    connected is essential to our survival. In a sense, evolution has

    made bets at each step that the best way to make us more

    successful is to make us more social."  

    Here’s the thing...we’re no longer living in a primitive world right, so living in a tribe isn’t necessary for day-to-day life over death. But that doesn’t mean being connected to people isn’t still important and necessary for humans...Unfortunately we’ve swung like a pendulum in the other direction with FOMO. 

    Our obsession and non-stop consumption of social media has created an unrealistic scale.

    To Combat FOMO you need to think in complete thoughts, rather than incomplete thoughts. Challenge yourself to tell the WHOLE truth  instead of continuing to talk yourself into incomplete truths that feel good for a moment.

    FOMO is fueled by a perspective of scarcity. You come into a situation choosing to think that what you have right now isn’t enough. You associate loss with not getting more. You convince yourself that it isn’t enough to enjoy a night out with your friends. You need drinks, you need alcohol to make it better. 

    When you don’t redirect your thinking and you don’t challenge your FOMO thoughts...it leads to feelings that aren’t going to help you take the actions that will create the results you want in your life. You will keep doing what you’re doing and not changing because your thoughts are fueling the feelings of desire as well as the feeling of anticipated deprivation of not drinking.

    ★ Support this podcast ★