Harvard Intermittent Fasting Researcher Reveals the Clinical Truth Behind Fasting and Real Results

A Stanford Cancer Scientist on What Actually Prevents Cancer (And What Wellness Headlines Get Wrong)

In this episode of The LIVING Room Podcast, host Chris Wharton sits down with Dr. Paul Mischel for a fascinating exploration of what causes cancer, and the future of preventive medicine. A pioneer in precision oncology, Dr. Mischel's groundbreaking research revealed how extrachromosomal DNA (ecDNA)—small circles of DNA that exist outside our chromosomes—can fuel tumor growth, accelerate evolution, and help cancers evade treatment. His discoveries have transformed our understanding of some of the most aggressive cancers, including glioblastoma. But this conversation goes far beyond the laboratory… Dr. Mischel breaks down what the latest science actually tells us about cancer risk, prevention, and early detection. Together, they explore which lifestyle factors are backed by evidence, where common misconceptions persist, and why the future of cancer screening may be both more powerful—and more nuanced—than many people realize. Please join us for a thought-provoking conversation about one of medicine's greatest challenges, and the science that may help change its future. In this video, we explore: * What cancer actually is — and why some cancers become far more aggressive than others * How extrachromosomal DNA (ecDNA) helps tumors evolve and resist treatment — and why that changes everything about precision oncology * What the science actually says about exercise, nutrition, alcohol, smoking, vaccines, and cancer prevention * The real cancer risk factors you can control — and the ones you can't * Why full-body MRIs and cancer blood tests are promising but not a replacement for traditional cancer screening yet * The biggest cancer myths circulating in wellness spaces — and what the data actually supports * How to think about your cancer risk with more agency and less fear About Dr. Paul Mischel:  Paul Mischel, MD, is a physician-scientist at Stanford Medicine whose research revealed how extrachromosomal DNA drives the evolution and drug resistance of aggressive cancers. His work has reshaped the field of precision oncology. Want more? Each month, we send a newsletter curated by our scientific council on what's  actually advancing the science of human longevity — and what isn't. Subscribe at https://www.thewndrlab.com/mailing-list [https://www.thewndrlab.com/mailing-list]. The WNDR Lab: https://www.thewndrlab.com/

A Neuroscientist Breaks Down GLP–1s, Genetics & the Real Science of Fat Loss | Zachary A. Knight

Why is losing weight—and keeping it off—so difficult? A leading neuroscientist explains the biology of hunger, the rise of GLP-1 medications, and what science is revealing about the brain's role in body weight regulation. In this episode of The LIVING Room Podcast, Chris Wharton sits down with Dr. Zachary A. Knight, PhD — Professor of Physiology at UC San Francisco, Howard Hughes Medical Institute Investigator, and one of the world's leading researchers studying the neural circuits that regulate hunger, thirst, and body weight. Drawing from decades of research, Dr. Knight explains why body weight is influenced by far more than motivation alone, how genetics and environment interact to shape appetite, what happens in the brain when we lose weight, and why GLP-1 medications have transformed obesity treatment. Watch this episode to learn: • Why maintaining weight loss is so challenging for many people • How genetics and environment work together to influence body weight • What happens in the brain when you're hungry—and when you're full • How GLP-1 medications like Ozempic, Wegovy, and Mounjaro affect appetite and food-related reward signals • The science behind "food noise" and why many patients report it decreases on GLP-1s • Whether weight-loss medications are likely to be lifelong treatments • Practical, science-backed ways to increase satiety and better manage hunger • What researchers are learning about hydration, thirst, and the body's internal regulation systems • Where the next generation of obesity and metabolic health treatments may be headed This isn't diet advice. This is the neuroscience of hunger — and it will completely change how you think about your body. Connect with Dr. Zachary A. Knight: https://knightlab.ucsf.edu/ [https://knightlab.ucsf.edu/] http://www.linkedin.com/in/zachary-knight-29a37977 [http://www.linkedin.com/in/zachary-knight-29a37977] https://x.com/zaknight [https://x.com/zaknight]   Want more? Each month, we send a newsletter curated by our scientific council on what's actually advancing the science of human longevity — and what isn't. Subscribe at https://www.thewndrlab.com/mailing-list [https://www.thewndrlab.com/mailing-list]. The WNDR Lab: TheWNDRLab.com [http://thewndrlab.com]

Anti-Aging Myths Most Believe: Mayo Clinic MD on Retinol, SPF, Skinspan, Peptides & Red Light

Most anti-aging skincare is focused on the surface — but the real story of skin aging starts much deeper. Mayo Clinic dermatologist Dr. Saranya Wyles breaks down what’s actually happening beneath your skin, why up to 75% of skin aging may be modifiable, and what science really says about retinol, SPF, red light therapy, collagen, peptides, GLP-1s, and more. Saranya Wyles, MD, PhD, is the Director of the Regenerative Dermatology and the Skin Longevity Laboratory at Mayo Clinic whose work focuses on skin aging, wound healing, cellular senescence, and regenerative medicine. In this episode of The LIVING Room Podcast, she joins Chris Wharton to explain why your skin is often a reflection of what’s happening inside your body — from brain health to heart health and overall aging, what SPF, retinol, red light therapy, collagen, and peptides actually do, and why the future of skincare will include 3D-bioprinted skin tissue and regenerative therapies. What we cover in this conversation: * Why 75% of skin aging is modifiable — and what that actually means * The skincare routine a Mayo Clinic dermatologist actually recommends * Why oral collagen supplements may be a waste of money * Whether retinol, red light therapy, and peptides live up to the hype * What sunscreen actually protects you from (and how it impacts vitamin D) * Why weight-loss drugs like GLP-1s may be aging your face * The future of regenerative skin repair — from exosomes to 3D-bioprinted skin For science-backed clarity on what really protects your skin, free from the noise of anti-aging marketing — this episode delivers true value around powerful anti-aging practices that you can apply to your life. Learn more about  Dr. Saranya Wyles https://www.instagram.com/drwyles.derm

Robert Downey Jr. On Living With Intention, Discipline & What Happiness Really Means

What does it really look like to evolve into the best version of yourself? Robert Downey Jr. sits down with Chris Wharton for an honest conversation about discipline, self-awareness, taking control of one’s health, and what happiness truly means after living one of Hollywood’s most extraordinary lives. In this episode, Robert Downey Jr. opens up about the daily rituals that keep him grounded, why he was the very first "patient zero" for Chris's wellness program, and what he learned from years of burning the candle at both ends. From preparing for Broadway to suiting up for Marvel, this is a masterclass in intentional living from a man who's seen it all.  Connect with Robert Downey Jr. at https://www.instagram.com/robertdowneyjr [https://www.instagram.com/robertdowneyjr]  Want more? Each month, we send a newsletter curated by our scientific council on what's actually advancing the science of human longevity — and what isn't. Subscribe at https://www.thewndrlab.com/mailing-list [https://www.thewndrlab.com/mailing-list]. The WNDR Lab: https://www.thewndrlab.com/ [https://www.thewndrlab.com/]

Harvard Intermittent Fasting Researcher Reveals the Clinical Truth Behind Fasting and Real Results

Dr. Courtney Peterson runs one of the world's largest labs studying intermittent fasting in humans  at Harvard,  and her research shows most people are fasting at the wrong time of day. Here's what the clinical data actually says. Chris Wharton sits down with Dr. Peterson — Harvard researcher and member of the international scientific committee that formally defined intermittent fasting — to break down what rigorous clinical trial data actually says about fasting, meal timing, blood sugar, and weight loss. Not what the headlines say, but what the science says. In this episode, you'll discover:  → Why fasting doesn't work by burning more calories — and what it's actually doing inside your body instead  → The single most important variable in your fasting protocol — and why most people are getting it completely wrong  → Why the timing of your eating window matters more than the window itself — and how shifting it can dramatically improve blood sugar and blood pressure  → What 27 out of 28 clinical diabetes studies showed about intermittent fasting — and why this finding changes everything  → The weight loss results you can realistically expect — what the data shows for both short-term and long-term outcomes  → How fasting affects hunger hormones — and why people who do it right stop feeling deprived → The specific populations who benefit most from time-restricted eating — and the ones who should not fast at all  → How to make fasting sustainable long-term — practical strategies backed by clinical research, not wellness trends →  Why intermittent fasting may support women’s metabolic health and healthy aging — and why extreme fasting is not one-size-fits-all. Dr. Peterson has spent years running controlled clinical trials on intermittent fasting. This episode isn't wellness hype, it’s the science. Courtney Peterson, PhD | Harvard University Dr. Courtney Peterson is Associate Professor of Nutrition at the Harvard T.H. Chan School of Public Health, with appointments in the Department of Nutrition and the Department of Molecular Metabolism. Her research examines how meal timing, intermittent fasting, and circadian rhythms shape metabolic health, with the goal of developing dietary strategies to prevent and reverse type 2 diabetes and obesity. She led the first human clinical trial of early time-restricted eating, an approach that aligns the daily eating window with the body's internal clock, and her work has helped establish meal timing as a distinct variable in metabolic health, alongside diet composition and total caloric intake. Dr. Peterson holds a PhD in physics from Harvard, where she studied the early universe before turning to nutrition science, along with master's degrees from Tulane in clinical research, Imperial College London in science communication, and the University of Cambridge in applied mathematics and theoretical physics. She previously served on the faculty at the University of Alabama at Birmingham.