#324 ‒ Metabolism, energy balance, and aging: How diet, calorie restriction, and macronutrients influence longevity and metabolic health | Eric Ravussin, Ph.D.
Release Date: 11/04/2024
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.
The Peter Attia Drive
This is part one of a two-part mini-series on fertility and reproductive health, with next week's guest, Dr. Paula Amato, focusing on the female side of the equation. Paul Turek is a world-renowned expert in male fertility and reproductive health, the founder and medical director of the Turek Clinic, and host of the Talk with Turek podcast. In this episode, Paul explores the topic of male fertility, offering a detailed look at the complex and highly coordinated process of conception and the many challenges sperm face on their journey to fertilizing an egg. He shares fascinating insights...
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#350 ‒ Injury prevention, recovery, and performance optimization for every decade | Kyler Brown, D.C.
The Peter Attia Drive
Kyler Brown is a sports rehab chiropractor who specializes in injury recovery, pre- and post-surgical rehabilitation, and guiding clients from rehab back to peak performance. As co-founder of the private training program 10 Squared alongside Peter, Kyler shares his approach to injury prevention and performance optimization—highlighting how overlooked movement patterns can quietly lead to chronic issues over time. He outlines a practical framework for assessing and treating individuals, highlights the importance of understanding movement dynamics and asymmetries, and discusses personalized...
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#349 - AMA #71: Building strength and muscle mass: how to optimize training, nutrition, and more for longevity
The Peter Attia Drive
In this “Ask Me Anything” (AMA) episode, Peter dives deep into the topic of muscle mass and strength, examining their essential roles in both lifespan and healthspan. Drawing from over 30 hours of prior discussions with experts including Layne Norton, Andy Galpin, and Mike Israetel, this episode distills the most important insights into one comprehensive and up-to-date conversation. Peter explores why muscle matters for longevity, metabolic health, and injury prevention, and clarifies the differences between muscle mass and strength, including which is more vital for aging well. He...
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#348 ‒ Women’s sexual health, menopause, and hormone replacement therapy (HRT) | Rachel Rubin, M.D.
The Peter Attia Drive
Rachel Rubin is a board-certified urologist and one of the nation's foremost experts in sexual health. In this episode, she shares her deep expertise on the often-overlooked topic of women’s sexual health, exploring why this area remains so neglected in traditional medicine and highlighting the critical differences in how men and women experience hormonal decline with age. Rachel explains the physiology of the menstrual cycle, the complex hormonal shifts of perimenopause, and the wide-reaching health risks associated with menopause, including osteoporosis, cardiovascular disease,...
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#347 – Peter’s takeaways on mastering sleep, dealing with chronic pain, developing breakthrough cancer drugs, transforming healthcare with AI, advancing radiation therapy, and healing trauma | Quarterly Podcast Summary #5
The Peter Attia Drive
In this quarterly podcast summary (QPS) episode, Peter summarizes his biggest takeaways from the last three months of guest interviews on the podcast. Peter shares key insights from his discussions with Jeff English on the journey to healing from trauma; Ashley Mason on improving sleep and CBT-I; Sanjay Mehta on misconceptions around radiation and its use in cancer therapy and treating inflammatory conditions (such as arthritis and tendonitis); Sean Mackey on understanding and treating acute and chronic pain; and Susan Desmond-Hellmann on insights from her extraordinary career that pertain...
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#346 - Scaling biotech and improving global health: lessons from an extraordinary career in medicine | Susan Desmond-Hellmann, M.D., M.P.H.
The Peter Attia Drive
Susan Desmond-Hellmann is a physician and scientist whose remarkable career has spanned clinical medicine, oncology, biotech innovation, and global health leadership. In this episode, Susan shares insights from her journey training in internal medicine during the early AIDS crisis, treating HIV-related cancers in Uganda, and developing groundbreaking cancer therapies like Herceptin and Avastin. She reflects on her leadership roles at UCSF and the Bill and Melinda Gates Foundation, offering lessons on guiding large-scale health initiatives, navigating uncertainty, and fostering scientific...
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#345 ‒ Chronic pain: pathways, treatment, and the path to physical and psychological recovery | Sean Mackey, M.D., Ph.D.
The Peter Attia Drive
Sean Mackey is a professor of pain medicine at Stanford University and the director of the Stanford Systems Neuroscience and Pain Lab, where his research explores the neural mechanisms of pain and the development of novel treatments for chronic pain. In this episode, Sean joins Peter for a wide-ranging discussion on the multifaceted nature of pain—as both a sensory and emotional experience—and its evolutionary purpose as a critical survival mechanism. He dives into how pain is transmitted through the nervous system, the different types of pain, and why different individuals perceive...
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#344 - AMA #70: Nicotine: impact on cognitive function, performance, and mood, health risks, delivery modalities, and smoking cessation strategies
The Peter Attia Drive
In this “Ask Me Anything” (AMA) episode, Peter dives deep into nicotine—a topic increasingly debated both scientifically and publicly. He clarifies the critical differences between nicotine and tobacco, highlighting why nicotine alone isn't primarily responsible for smoking's severe health consequences. Peter examines the specific risks associated with nicotine use, including addiction, sleep disruption, cardiovascular concerns, and effects on mood and anxiety. He evaluates various nicotine delivery methods, from traditional cigarettes to gums, pouches, and synthetic alternatives,...
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#343 – The evolving role of radiation: advancements in cancer treatment, emerging low-dose treatments for arthritis, tendonitis, and injuries, and addressing misconceptions | Sanjay Mehta, M.D.
The Peter Attia Drive
Sanjay Mehta is a radiation oncologist with over 25 years of experience, and is currently the president of Century Cancer Centers in Houston, Texas (). In this episode, Sanjay explores the rapidly evolving field of radiation oncology, addressing common misconceptions about radiation exposure. He delves into radiation’s critical role in modern oncology, examining recent advancements that precisely target tumors while minimizing damage to surrounding healthy tissues and reducing side effects, with specific insights into breast, prostate, and brain cancers. Sanjay discusses fascinating...
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#342 ‒ Aging well: Peter shares strategies for improving longevity with residents at a senior living center
The Peter Attia Drive
In this special episode of The Drive, Peter joins a unique conversation inspired by his daughter’s volunteer experience at a senior care center, where she formed meaningful relationships with residents curious about healthspan, lifespan, and strategies for living well as they age. Peter engages directly with the residents, covering critical topics like the profound impact of exercise—particularly strength training— for maintaining mobility, preventing falls, and preserving independence later in life. He also discusses the importance of nutrition, emphasizing adequate protein intake,...
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Eric Ravussin is a world-renowned expert on obesity, metabolism, and aging whose pioneering research has shaped much of what we understand today about energy balance and caloric restriction. In this episode, Eric shares insights from his cutting-edge work on energy expenditure—a critical factor in understanding how our bodies regulate weight and appetite. He discusses methods for measuring energy output, energy balance, food intake, and appetite regulation, and explores key studies on macronutrient manipulation. Eric then delves into the CALERIE study on caloric restriction, highlighting insights related to biomarkers of both primary and secondary aging. The conversation also covers the potential of GLP-1 agonists to replicate these effects and looks ahead to how AI and technology could transform metabolic research in the coming years.
We discuss:
- Eric’s background and current work metabolism and measuring energy expenditure [3:00];
- The science behind metabolic chambers for measuring energy expenditure, and the complexities of indirect and direct calorimetry [8:00];
- The body's regulatory systems for maintaining energy balance and the primary influence of energy intake on body weight [18:30];
- The epidemic of obesity and a discussion of resting metabolic rate [24:45];
- The impact of exercise, appetite, gut hormones, and eating patterns on weight regulation [28:45];
- Experiments looking at how macronutrient composition affects energy expenditure [38:45];
- The challenges of studying diet in real-life settings, the potential of personalized nutrition, and how public health policy could play a role in guiding nutritional habits [51:00];
- The importance of protein in the diet, the limitations of dietary data collection, and how AI could potentially transform nutrition science [1:08:15];
- How Eric’s interest in caloric restriction (CR) began with Biosphere 2, metabolic efficiency's role in aging, and goals of the CALERIE study [1:15:15];
- The CALERIE study: exploring the real-world impact of caloric restriction [1:28:00];
- Notable findings from the CALERIE study after two years: sustained weight loss, participant retention, and more [1:40:00];
- The effect of caloric restriction on the hallmarks of aging [1:47:00];
- The challenge of applying CR to the general population, the potential of drugs and exercise to mimic the effects of CR [1:55:45];
- Upcoming study comparing caloric restriction to time-restricting eating, and Peter’s takeaways from the discussion [2:02:45]; and
- More.
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