The Big Vitamin D Mistake, How Ben Reads A Book A Day, Cold Therapy vs. Cryotherapy vs. Cold Thermogenesis & Much More!

Full Show Notes: https://bengreenfieldlife.com/lnleland/ From the science behind sunlight, circadian lighting, and EMFs to practical tips on breathwork, cold exposure, and personalized nutrition, this wide-ranging conversation is packed with actionable insights. You'll learn why optimizing your external environment—light, air, water, and even mindset—is just as vital as what you eat, plus discover how environmental factors can impact everything from immune health to sleep quality. Whether you're a health enthusiast or just curious about leveling up your wellbeing, this episode delivers a blend of cutting-edge science and real-world strategies that will inspire you to rethink your daily routine. Dr. Leland Stillman is one interesting doctor and a man after my own heart - meaning he's interested in everything from how polar bears use cold thermogenesis and hibernation to enhance longevity to how your environment drastically shapes your health no matter how hard you exercise or how perfectly you eat. He became interested in natural and integrative medicine at an early age. After majoring in environmental health at Connecticut College and earning his medical doctorate from the University of Virginia School of Medicine, Dr. Stillman completed his training in internal medicine at Maine Medical Center. Board-certified in internal medicine and specializing in integrative medicine, he has a passion for doing whatever it takes to discover the root cause of his patients' medical problems through advanced laboratory testing and then addressing those imbalances with dietary or lifestyle interventions. Dr. Stillman focuses not only on the patient but on all aspects of the environment they live in. Some of Dr. Stillman's professional interests include phototherapy (photobiomodulation), nutrition, toxicology, and the immune system. Episode Sponsors: Troscriptions: Explore Troscriptions' revolutionary buccal troche delivery system that bypasses digestion to deliver pharmaceutical-grade, physician-formulated health optimization compounds directly through your cheek mucosa for faster onset and higher bioavailability than traditional supplements. Discover a completely new way to optimize your health at troscriptions.com/BEN or enter BEN at checkout for 10% off your first order. LVLUP Health: I trust and recommend LVLUP Health for your peptide needs as they third-party test every single batch of their peptides to ensure you’re getting exactly what you pay for and the results you’re after! Head over to lvluphealth.com/BGL and use code BEN15 for a special discount on their game-changing range of products. Qualia: Support better aging with Qualia Senolytic and boost brain health with Qualia Mind—two of my favorites! Visit qualialife.com/boundless and use code BOUNDLESS for 15% off your order. Ultimate Longevity: Ready to hack your sleep and stay grounded while recovering? Head to ultimatelongevity.com/ben to get your hands on grounding mats for your mattress, pillow, blankets, and other valuable tools to help you bring down your inflammation and jumps start your healing. See omnystudio.com/listener for privacy information.

17 Jan 1h 15min

Full Show Notes: https://bengreenfieldlife.com/vaguspodcast/ On today's podcast, we dive deep into the fascinating connection between the vagus nerve and the immune system, exploring how these two critical systems communicate bidirectionally. We examine the role of immune cells throughout the body and discuss recent advances in bioelectronic medicine. This episode offers a fresh perspective on nervous system regulation and its impact on overall health, especially concerning the gut brain axis. Dr. Navaz Habib, aka "The Vagus Nerve Doc," is a best-selling author and host of ‘The Health Upgrade Podcast’. After using functional medicine to overcome his own health challenges, Dr. Habib built Health Upgraded, an online health program guiding parents and professionals to enhance their health by unlocking the healing power of the Vagus nerve to reduce the effects of stress and inflammation. JP Errico has spent more than two decades at the intersection of science, innovation, and entrepreneurship, with a focus on neuroimmunology and medical technology. Over the course of his career, he has been awarded dozens of patents, developed groundbreaking medical devices, and helped bring new health technologies from concept to market, including non-invasive Vagus Nerve Stimulation. Episode Sponsors: LMNT: Everyone needs electrolytes, especially those on low-carb diets, who practice intermittent or extended fasting, are physically active, or sweat a lot. Go to DrinkLMNT.com/BenGreenfield to get a free sample pack with your purchase! Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription. TRIUMPH Coaching: Join me for one-on-one coaching with me and my hand-picked team, custom-built around your labs, your lifestyle, and goals, until you actually hit them. No guesswork. Just results. If you’re finally ready to stop wasting time and money and start living the boundless life you know is possible, go to jointriumphcoaching.com and book your call. BIOptimizers Magnesium Breakthrough: The 7 essential forms of magnesium included in this full spectrum serving help you relax, unwind, and turn off your active brain after a long and stressful day so you can rest peacefully and wake up feeling refreshed, vibrant, and alert. Go to bioptimizers.com/ben and use code ben15 for 15% off any order.See omnystudio.com/listener for privacy information.

15 Jan 1h 2min

Full Show Notes: https://bengreenfieldlife.com/glucosesurprises Josh Clemente, Founder and CEO of Levels, is a systems engineer and metabolic health enthusiast. At SpaceX, he led a team to develop life support systems that in May of 2020 began sustaining astronauts on trips to and from the International Space Station aboard Crew Dragon: the first privately developed human-rated orbital spacecraft in history. Josh has spent the past decade obsessed with extending the lives of those he loves by breaking down barriers to better, more accurate, and more frequent measurement of human health. He enjoys the outdoors, functional fitness training, technology, coffee, and restoring motorcycles. Fun fact: Josh was homeschooled K–12 along with his 8 siblings by his legendary Mom. 🎉 Special Offer (No Code Needed) 🎉📆 Receive 2 FREE months when you sign up for an annual Levels membership here. ✨ Episode Sponsors: Manukora: You haven’t tasted or seen honey like this before - so indulge and try some honey with superpowers from Manukora. If you head to manukora.com/ben or use code BEN, you’ll automatically get $25 off your Starter Kit. Truvaga: Balance your nervous system naturally with Truvaga's vagus nerve stimulator. Visit Truvaga.com/Greenfield and use code GREENFIELD30 to save $30 off any Truvaga device. Calm your mind, focus better, and recover faster in just two minutes. Apollo: Apollo is a safe and non-invasive wearable that actively improves your sleep. Head over to apolloneuro.com/bengreenfield and use code BENGREENFIELD for $90 off. Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription.See omnystudio.com/listener for privacy information.

10 Jan 1h

Full Show Notes: https://bengreenfieldlife.com/article/newsletter-1 Writing a book is a lot like childbirth—exhausting, and not something you rush back into the moment it’s over. I’ve never given birth, but I have written several books—and after finishing Boundless, I wasn’t too eager to jump straight into that process again. Until recently. There are just too many health myths wasting your time, energy, and attention—especially around supplements, cold and heat exposure, sleep, fasting, seed oils, red meat, carbohydrates, psychedelics, biohacking, and the modern obsession with living forever. So over the coming months, I’m going to tackle these types of topics through a weekly newsletter, article, and video series, which will eventually be crafted into my next book. If something resonates, let me know. If something falls flat, tell me. And if there’s a topic that deserves a deeper dive, point me there. Head to https://bengreenfieldlife.com/article/newsletter-1/ for today’s article, and drop any other feedback in the comments, including topics you think I should address in the book!See omnystudio.com/listener for privacy information.

9 Jan 6min

Full Show Notes: https://bengreenfieldlife.com/dylan/ In today's episode, Dylan and I explore how your genetics, microbiome, lifestyle, and activity level all play a role in what works best for you. I share my thoughts on carbs (they’re not the enemy!), why the Mediterranean diet is often a solid fallback, and how to customize your approach—whether you’re training like an athlete or just trying to eat well on a budget. We also get real about fasting: I break down what works for high performers, how to balance longevity with peak performance, and what fasting windows actually make sense if you’re pushing your body hard. From there, we dissect the critical topic of heart health, talking through the difference between stable and unstable plaque, key diagnostic tools, and both natural and pharmaceutical strategies I’ve studied—and used personally—to keep my heart in top shape. Episode Sponsors: Our Place: Upgrade to Our Place today and say goodbye to forever chemicals in your kitchen. Go to fromourplace.com/ben and enter my code BEN at checkout to receive 10% off sitewide. Sunlighten: Sunlighten's patented infrared sauna technology delivers the highest quality near, mid, and far infrared wavelengths to reduce inflammation, boost mitochondrial function, enhance detox pathways, and optimize recovery—backed by 25+ years of clinically proven, non-toxic innovation. Save up to $1,400 at get.sunlighten.com/ben with code BEN. Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription. TRIUMPH Coaching: Join me for one-on-one coaching with me and my hand-picked team, custom-built around your labs, your lifestyle, and goals, until you actually hit them. No guesswork. Just results. If you’re finally ready to stop wasting time and money and start living the boundless life you know is possible, go to jointriumphcoaching.com and book your call.See omnystudio.com/listener for privacy information.

8 Jan 1h 6min

Full Show Notes: https://bengreenfieldlife.com/lnraw06/ Welcome to RAW—my unfiltered solo podcast (hosted on LIFE Network), where you get the real, behind-the-scenes version of my life: the biohacking experiments I’m running on myself, the protocols I’m building and breaking, the tools and tech I’m stress-testing before anyone hears about them, the ideas in physiology, performance, and longevity I’m diving into, the beliefs I’m questioning, the routines I’m refining, and the unconventional stuff I’m actually doing day to day—no gloss, no script, just a direct line into what I’m thinking, testing, discovering, and living in real time. In this episode, we go deep into the “RAW” terrain of jaw mechanics—think controversial, awkward, and a tad nerdy, but game-changing for health. It all starts at a cocktail party when a Sherlock Holmes-style dentist spots red flags just by looking at his mouth. Cue a year-plus journey into bioesthetic dentistry, mindfully chewing food, and mastering “mewing” (tongue and jaw posture that even changes your face shape). What’s the big actionable win? Stop ignoring your mouth! Rethink your mechanics, posture, and oral hygiene—ditch the fluoride, embrace hydroxyapatite toothpaste, train your tongue to suction to your palate, and breathe through your nose like a pro. Bonus: mouth taping is not just for sleep geeks. Episode Sponsors: Just Thrive: Take the Just Thrive FEEL BETTER challenge today, and save 20% on your first Gut Essentials Bundle. Just Thrive Probiotic is the only probiotic clinically proven to arrive 100% alive in your gut, wrestling in less bloat, better energy, and even clear skin. Digestive Bitters packs 12 science-backed herbs in one tasteless capsule that jumpstarts your digestion and supports GLP-1 production so cravings don’t control you. Visit justthrivehealth.com/BEN and save 20% with promo code BEN. See the difference for yourself or get a full product refund, no questions asked. Fatty15: Fatty15 is on a mission to optimize your C15:0 levels and help you live healthier, longer. You can get an additional 15% off their 90-day subscription Starter Kit by going to fatty15.com/BEN and using code BEN at checkout. BIOptimizers Magnesium Breakthrough: The 7 essential forms of magnesium included in this full spectrum serving help you relax, unwind, and turn off your active brain after a long and stressful day so you can rest peacefully and wake up feeling refreshed, vibrant, and alert. Go to bioptimizers.com/ben and use code ben15 for 15% off any order. Muse: Muse S Athena combines clinical-grade EEG and fNIRS technology to train your brain in real time while tracking sleep with 86% expert-level accuracy. Get 15% off at choosemuse.com/BENGREENFIELD or use code BENGREENFIELD at checkout. Truvaga: Balance your nervous system naturally with Truvaga's vagus nerve stimulator. Visit Truvaga.com/Greenfield and use code GREENFIELD30 to save $30 off any Truvaga device. Calm your mind, focus better, and recover faster in just two minutes.See omnystudio.com/listener for privacy information.

3 Jan 27min

Full Show Notes: https://bengreenfieldlife.com/noompodcast/ In this episode, Geoff Cook, CEO of Noom, talks about the science and practicalities of GLP-1 microdosing for weight loss and longevity. He breaks down what microdosing means, how Noom combines low-dose GLP-1 with behavior change programs to promote sustainable results, and the broader health benefits beyond just weight loss—such as improved metabolic markers and reduced inflammation. The conversation also covers safety, affordability, and Noom's new at-home blood testing for tracking progress. Geoff Cook is the CEO of Noom. He is also a serial entrepreneur and long-time public company CEO. He co-founded The Meet Group, a NASDAQ-listed social dating and live-streaming company connecting millions of active users globally. Geoff served as The Meet Group’s CEO from 2013 to 2023, leading it through its sale for $500 million in 2020. Noom Health partners with top health plans and employers to offer a suite of solutions, including Noom Med, Noom Med with SmartRx, Noom Weight, Noom Weight with GLP-1Rx, Noom Diabetes, and Noom Diabetes Prevention Program, to millions. Noom has received multiple National Institute of Health grants and was the first mobile app recognized by the CDC as a certified diabetes prevention program. You can visit Noom and use the code BGNOOM to save 10% off. Episode Sponsors: BON CHARGE: BON CHARGE is a holistic wellness brand with a wide range of products that naturally address the issues of modern life. Their products can help you sleep better, perform better, recover faster, balance hormones, reduce inflammation, and so much more. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%. Timeline: Give your cells new life with high-performance products powered by Mitopure, Timeline's powerful ingredient that unlocks a precise dose of the rare Urolithin A molecule and promotes healthy aging. Don’t let another year go by feeling less than your best. Grab 35% off your one month subscription of Mitopure Gummies at Timeline.com/BEN35while the offer lasts. Organifi Shilajit Gummies: Harness the ancient power of pure Himalayan Shilajit anytime you want with these convenient and tasty gummies. Get them now for 20% off at organifi.com/Ben. Hiya: Give your kids the full-body nourishment they need to grow into healthy adults. I’ve secured a special deal with Hiya on their best-selling children's vitamin—get 50% off your first order today! To claim this deal, you must go to hiyahealth.com/BEN (it is not available on their regular website). Troscriptions: Explore Troscriptions' revolutionary buccal troche delivery system that bypasses digestion to deliver pharmaceutical-grade, physician-formulated health optimization compounds directly through your cheek mucosa for faster onset and higher bioavailability than traditional supplements. Discover a completely new way to optimize your health at troscriptions.com/BEN or enter BEN at checkout for 10% off your first order. See omnystudio.com/listener for privacy information.

1 Jan 47min

Full Shownotes: https://bengreenfieldlife.com/podcast/495/ In this episode, I take you through a solo Q&A exploring topics like the best sauna practices, the real benefits of walking 7,000 steps a day, and the latest research on gut health treatments—including my personal experience starting a fecal microbiota transplant for chronic issues. How perceived food sensitivities can sometimes create real symptoms, clear up concerns about ketone supplements and liver health, and emphasize the importance of staying active throughout the day. I also mention my biohacking binder and let you know all the resources, studies, and tools I recommend will be linked in the show notes for anyone wanting more details. You’ll gain access to my complete binder of home biohacking tools and gadgets designed to support long-term health and performance (click here to start exploring). Episode Sponsors: IM8: Ditch the cabinet full of supplements—IM8 packs 92 powerhouse ingredients into one delicious scoop for all-day energy, gut health, and cellular support. Go to IM8Health.com and use code BEN for an exclusive gift—fuel your body the right way! Quantum Upgrade: Recent research has revealed that the Quantum Upgrade was able to increase ATP production by a jaw-dropping 20–25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io. Muse: Muse S Athena combines clinical-grade EEG and fNIRS technology to train your brain in real time while tracking sleep with 86% expert-level accuracy. Get 15% off at choosemuse.com/BENGREENFIELD or use code BENGREENFIELD at checkout. BIOptimizers Magnesium Breakthrough: The 7 essential forms of magnesium included in this full-spectrum serving help you relax, unwind, and turn off your active brain after a long and stressful day, so you can rest peacefully and wake up feeling refreshed, vibrant, and alert. Go to bioptimizers.com/ben and use code ben15 for 15% off any order. LMNT: Everyone needs electrolytes, especially those on low-carb diets, who practice intermittent or extended fasting, are physically active, or sweat a lot. Go to DrinkLMNT.com/BenGreenfield to get a free sample pack with your purchase!See omnystudio.com/listener for privacy information.

27 Des 202535min