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Boundless Life

Ben Greenfield

Free fitness, nutrition, biohacking, fat loss, anti-aging and cutting-edge health advice from BenGreenfieldLife.com! Tune in to the latest research, interviews with exercise, diet and medical professionals, and an entertaining mash-up of ancestral wisdom and modern science, along with Q&A's and mind-body-spirit optimizing content from America's top personal trainer.

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  • 33 episodes
  • a few times a week
  • Avg 55 min
  • English

Episodes 33

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  • Yesterday · 1 hr 2 min

    From 15 Bathroom Trips A Day To A Clean Gut: Fixing Poop Issues NATURALLY - With Josh Dech

    Full show notes: BenGreenfieldLife.com/gutsolution In this episode, you'll meet Josh Dech, a former paramedic turned Crohn's and colitis consultant who argues that all three things Western medicine says about inflammatory bowel disease are wrong: it's not genetic, not classically autoimmune, and not idiopathic. We walk the research trail from a 1988 Swedish twin study through the NOD2 gene to the genome-wide studies that mapped hundreds of risk loci and still explained only a sliver of the disease, and into the numbers that worry him most, where the West has 6% of the world's population but 60% of its bowel disease. You'll also get the practical half: his sequence to help stop the active cause first, then how he suggests opening the seven drainage pathways, why he takes a full history before ordering a single test, where peptides belong, what is really coming out of people during a parasite cleanse, and why $30,000 fecal transplants keep failing. Near the end, it turns personal and a little gross, into my own dairy problem and the biomechanics of a proper bowel movement. Episode Sponsors: Quantum Upgrade: Boost your cellular energy, wherever you are, with a field shown to increase ATP (adenosine triphosphate) production by 20 to 25 percent in human cells. Get a 15-day free trial at quantumupgrade.io with code BEN15. TruDiagnostic: An at-home epigenetic test that measures over a million biomarkers and turns them into a clear picture of how you are actually aging. Visit TruDiagnostic.com and use code BEN20 for 20% off. Dr. Murray ThymoQuin®: The only black seed oil that meets U.S. Pharmacopeia guidelines, clinically researched to support healthy cortisol levels and everyday stress resilience. Visit doctormurray.com/ben and use code BEN25 for 25% off. Manukora: Honey with superpowers, and unlike anything you have tasted before. Head to manukora.com/ben or use code BEN and you'll automatically get $25 off your Starter Kit. Active Skin Repair: Uses hypochlorous acid, a molecule your body already makes, to support skin repair without harsh chemicals. Go to ActiveSkinRepair.com and use code BEN for 20% off, or find it on Amazon and at your local CVS. Nuchido: Nuchido TIME+ supports multiple pathways in NAD production, recycling, and preservation rather than relying on a single ingredient. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20%. See omnystudio.com/listener for privacy information.

  • Saturday · 1 hr 3 min

    A Memory & Learning Expert Reveals His Secrets To Training Your Brain & MASTERING Your Mind, With Jim Kwik

    Full show notes: BenGreenfieldLife.com/limitlessdaily In this episode, you'll hear repeat guest Jim Kwik talk about cognitive offloading and where the line sits between using your phone as a second brain and letting your own memory go slack. We dig into the MIT study that scanned essay writers' brains and found the ChatGPT group remembered the least of what they wrote, what London cabbies' brains looked like before satellite navigation, why movement drives brain-derived neurotrophic factor (BDNF), and why racket sports and dance sit at the top of the longevity list. You'll also learn Jim's BUILD framework for using AI as a critic rather than an answer machine, how to write an affirmation your brain will not immediately reject, the white bear effect that makes "don't check your phone" the least useful instruction you can give yourself, why the 15 to 45 minutes of sleep inertia after you wake carries more weight than any other window in your day, and the four daily basics Jim ranks above every device in his house. We close with the 40 Hz gamma protocol I now use in the early afternoon, and the surprising effect it's had on how quickly I fall asleep at night. All of this comes straight out of Jim's new book, Limitless Daily, designed to give you one simple, actionable lesson each day for an entire year. Episode Sponsors: Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB), the same ketone molecule your body makes in ketosis, for clean cognitive support and stable energy with no conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order. ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth energy and focus from clinically backed nootropics and adaptogens, with no jitters or crashes. Visit takeultra.com and use code BENGREENFIELD for 15% off. Forkful: Chef-cooked, ready-to-eat meals made with grass-fed bison, wild-caught salmon, and fresh vegetables, zero seed oils, no prep and no cleanup, ready in under 3 minutes. Visit ForkfulMeals.com and use code BEN50 for 50% off your first order. Just Thrive: The Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters, 12 science-backed herbs that support digestion and GLP-1 production. Visit justthrivehealth.com/BEN and save 20% with promo code BEN. See omnystudio.com/listener for privacy information.

  • September 10 · 51 min

    This Guy Healed Knee Arthritis *Without* Surgery (& Chest-Pressed 555lbs For 14 Reps) - Cellular Hydration Secrets With John Jubilee

    Full show notes: BenGreenfieldLife.com/jubilee In this episode, John Jubilee makes the case that almost everything you have been told about hydration is beside the point. His argument is that the water is not the problem, the cell is: that a membrane gets progressively harder to penetrate as you age, that your water and your supplements simply bounce off it, and that until you change the membrane itself, nothing else you do gets in. He arrived at that after a decade of doing everything right, a gallon of water a day and a thousand dollars a month in supplements, and still having high blood pressure and no cartilage left in either knee. You'll hear the question he asked every one of his doctors that none of them could answer, the $11,000 machine he bought in 1997 to answer it himself, and the Energized Health protocol he built out of it. You'll also get the practical layer that costs nothing: the three steps he tells everyone to start with, the balls-of-your-feet walking trick and the soleus study behind it, his case for MSM, and why he refuses to recommend alkaline, structured, or reverse osmosis water. Then it turns personal, into cellular trauma, the ACE study, and why he believes a flawless diet still leaves something unaddressed. Mention Ben's name on your free breakthrough call with Energized Health for 40% off the 88-day program. Episode Sponsors: BIOptimizers Magnesium Breakthrough: Most magnesium supplements give you one or two forms. Magnesium Breakthrough gives you all seven, in the ratios your body actually uses, so you get better sleep, calmer nerves, and steadier energy. Go to bioptimizers.com/ben and use code BEN15 for 15% off any order. Dr. Murray ThymoQuin®: Black seed oil has been used for thousands of years, and ThymoQuin® is the most concentrated, highest-quality form of it available. It supports your immune system, your metabolism, and healthy inflammation levels. Visit doctormurray.com/ben and use code BEN25 for 25% off. ULTRA: A clean, functional performance drink with no artificial sweeteners, no seed oils, and no junk. Get it at bengreenfieldlife.com/ultra or takeultra.com and use code BENGREENFIELD for 15% off. Our Place: Nontoxic, PFAS-free cookware that replaces the whole cabinet with a few pieces you'll actually use. Go to fromourplace.com/ben and use code BEN for 10% off sitewide. Quantum Upgrade: Boost your cellular energy, wherever you are, with a field that works on you, your home, and even your car. Get a 15-day free trial at quantumupgrade.io with code BEN15. See omnystudio.com/listener for privacy information.

  • September 5 · 59 min

    How To Build An Ideal Workday With Power Naps, Email Delegation & Deep Work Tactics, Featuring Chandler Bolt

    Full show notes: bengreenfieldlife.com/bolt In this episode, Chandler Bolt and I talk about how we've each landed on almost identical daily systems for running a company, and the one place we still disagree. Chandler makes the case that a book is a business asset rather than an income stream, explains what it actually costs to buy your way onto the New York Times list, and then walks through the routine underneath all of it: a nap he hasn't skipped in years, a morning he refuses to let anyone schedule over, and a phone that geofences itself into work mode the moment he arrives at the office. You'll also hear why he self-experiments relentlessly yet refuses to wear a tracker. We get into the two metrics worth watching if you track nothing else, why the 30-minute nap ceiling is weaker science than you've been told, why a hot tub is harder on fertility than a sauna, what overhead LED lighting does to your afternoon and the BlockBlueLight bulbs I use instead, and why a manual WALKOLUTION treadmill desk beats a motorized one. Chandler also shares the airplane movement trick that got him mistaken for a lunatic by a stranger who later became a friend. Then we close on communication: being a default no, replacing calls with voice memos, and using SocialSweep to surface the connections already sitting in your phone. Episode Sponsors: TruDiagnostic: TruDiagnostic is an advanced at-home test that uses epigenetic analysis to measure over a million biomarkers, giving you personalized, data-driven insight into your aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off. Fatty15: Fatty15 is on a mission to optimize your C15:0 levels and help you live healthier, longer. Get an additional 15% off their 90-day subscription Starter Kit by going to fatty15.com/BEN and using code BEN at checkout. Young Goose: To experience the transformative power of Young Goose's cutting-edge skincare products, visit younggoose.com and use code BGF10 at checkout to enjoy a 10% discount on your order. Larine: Larine's better-for-you chewing gum uses nano-hydroxyapatite, the same mineral your tooth enamel is made of, to support stronger, healthier teeth while freshening your breath. Visit BuyLarine.com/BEN for up to 50% off your order today. 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. Save up to $1,600 at get.sunlighten.com/ben with code BEN. Nuchido: Support healthy aging at the cellular level with Nuchido TIME+, designed to optimize your body's NAD metabolism across multiple pathways rather than relying on a single ingredient, for healthy energy, cognitive function, and recovery. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20%. See omnystudio.com/listener for privacy information.

  • September 3 · 55 min

    How to Replace Sauna, Fasting, and Cold Plunge With a Pill (WARNING: Proceed at Your Own Risk!) With Dr. Sandra Kaufmann

    Full show notes: bengreenfieldlife.com/pharma In this special repeat episode, Dr. Sandra Kaufmann breaks down which pharmaceuticals mimic the effects of things you already do for your health: what replaces a sauna session, what replaces a fast, what replaces a cold plunge (use code BENFORGE for $500 off select products), and what she takes with meals to blunt the damage from glucose spikes. I'm re-airing it now because of a new Nature paper finding that lithium is a naturally occurring brain nutrient, and that losing it may be one of the earliest steps toward Alzheimer's, at a dose in exactly the range Dr. Kaufmann described on this show years earlier. You'll hear why she prefers pioglitazone over metformin for autophagy, how a Japanese gastritis drug connects to Alzheimer's, and how she worked her way up on an emergency blood pressure medication, starting at a dose that nearly knocked her off her feet and climbing to 100mg with no effect at all. The centerpiece is lithium (code BGL10 for 10% off): why the doses hidden inside popular nootropics are a fraction of what she considers useful, and everything it appears to do beyond mood, from controlling a pore in your mitochondria to building bone and growing new neurons. You'll also get her honest take on gene therapy versus pharmaceuticals, why peptides underperform in an older cell, and which molecule finally knocked astaxanthin off the top of her ranking system. Episode Sponsors: Xtendlife Prosta Support Advanced: A comprehensive daily prostate support formula combining saw palmetto, beta-sitosterol, vitamins, minerals, and botanicals to support prostate health, urinary function, and healthy aging. Visit Xtendlife.com/BensChoice and use code GREENFIELD for 15% off your order today. BON CHARGE: BON CHARGE is a holistic wellness brand whose products help you sleep better, perform better, recover faster, balance hormones, and reduce inflammation. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%. Tecton Ketones: Tecton Ketones deliver bioidentical D-beta-hydroxybutyrate (BHB), the same ketone molecule your body produces during ketosis, for clean cognitive support and stable energy with no conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order. Dr. Murray Natural Products – ThymoQuin®: ThymoQuin® is a clinically researched black seed oil formulated to support healthy cortisol levels, improve resilience to everyday stress, and promote overall well-being. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. 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, 50% off your first order. Go to hiyahealth.com/BEN (it is not available on their regular website). See omnystudio.com/listener for privacy information.

  • August 29 · 37 min

    The BIGGEST Step You Can Take To Reduce Microplastics, How To Get Rid of Back Pain, What You Need To Know About Heart Scans & More - Solosode #505

    Full show notes: bengreenfieldlife.com/505 In this solosode, you'll get the latest on microplastics, spinal disc health, and what a heart scan sees that a cholesterol panel misses. A new seven-day trial pitted five plastic-avoidance strategies against each other, and the results tell you exactly where to spend your effort if you can't overhaul everything at once. You'll hear which plastic sources matter most and what I now take before bed with BrocElite® (use code BEN for 25% off your first month) to help clear microplastics from tissue. Then I get personal about my back. I'll walk you through my full-body MRI results, which show significant degeneration from L1 to S1, and explain why I still have almost zero back pain, from Dr. Stuart McGill's Big 3 to inversion hanging, the couch stretch, the founder stretch from Foundation Training, and my WALKOLUTION® treadmill desk ($100 off, enter your email for a unique code). You'll also learn why running was the only activity linked to healthier spinal discs in a study of more than 4,000 people, and why none of the sports people assume are hard on your back showed harm. Finally, you'll hear what a coronary CT angiography measures that your cholesterol panel cannot, why a 6,061-person study found plaque volume beats any standard risk calculator, what my own scan revealed, and the surprisingly simple thing that appears highly protective even when your plaque is already elevated. Episode Sponsors: ULTRA: ULTRA is a clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, with no jitters, crashes, or sleep disruption. Visit takeultra.com and use code BENGREENFIELD for 15% off. Forkful: Forkful delivers chef-cooked, fresh, ready-to-eat meals made with premium ingredients like grass-fed bison and wild-caught salmon, with zero seed oils and no prep or cleanup, ready in under 3 minutes. Visit ForkfulMeals.com and use code BEN50 for 50% off your first order. Quantum Upgrade: Recent research revealed that the Quantum Upgrade was able to increase ATP production by a jaw-dropping 20 to 25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io. Supzential: More Than a Toothpaste: Created by biological dentist Dr. Dome, it combines highly bioavailable hydroxyapatite, a patented probiotic, xylitol, and lactoferrin to support enamel remineralization and a healthy oral microbiome, with no fluoride, SLS, or titanium dioxide. Visit Supzential.com and use code BEN20 for 20% off your order today. Active Skin Repair: Active Skin Repair uses hypochlorous acid, a molecule your body naturally produces, to support skin repair and defense without harsh chemicals, from post-workout irritation to everyday skin support. Go to ActiveSkinRepair.com and use code BEN for 20% off, or find it on Amazon and at your local CVS. See omnystudio.com/listener for privacy information.

  • August 27 · 1 hr 4 min

    The Myth Of The Perfect Health Routine: How To Raise Your HRV By Giving Up Control, With Justin Roethlingshoefer

    Full show notes: https://bengreenfieldlife.com/holyhealth In this episode with Justin Roethlingshoefer, you'll hear from a former NHL performance coach turned health entrepreneur whose new book, Holy Health, is the one I chose for my father-son book club this month. This is not another eat-honey-and-drink-milk Bible health book. Justin is a genuine biohacker who works with pro athletes worldwide, and he has woven deep spiritual and physiological science into the same framework. You'll learn why the modern obsession with optimization can quietly become idolatry, how the drive to control your metrics keeps your nervous system stuck in fight-or-flight and lowers your HRV, and the five "hearts" that trap high performers in striving. You'll also get the practical side: his full morning and evening rhythms, why he starts his day at 6 p.m. rather than at sunrise, the breathwork he does midday in the grass, his exact zone two and zone five weekly targets, and how he folds three and a half hours of zone two into family walks with a weighted vest. It's a conversation about doing less frantic optimizing and more intentional stewardship, and it may reframe how you think about every biohack you own. Episode Sponsors: Tiny Health: An at-home microbiome test that uses metagenomic sequencing to analyze your full gut ecosystem and give personalized, evidence-based diet, lifestyle, and supplement recommendations. Get $50 off your first kit at TinyHealth.com/BEN. Timeline: Give your cells new life with Mitopure, which unlocks a precise dose of the rare Urolithin A molecule to promote healthy aging. Mitopure now starts at $79 when you go to timeline.com/BEN. JOYMODE: Spice things up in the bedroom and boost your sexual performance naturally, without prescription drugs. Visit tryjoymode.com/BEN or enter BEN at checkout for 20% off your first order. Supzential: More Than a Toothpaste: Created by biological dentist Dr. Dome, it combines bioavailable hydroxyapatite, a patented probiotic, xylitol, and lactoferrin to support enamel remineralization and a healthy oral microbiome, with no fluoride, SLS, or titanium dioxide. Visit Supzential.com and use code BEN20 for 20% off. BIOptimizers Magnesium Breakthrough: Seven essential forms of magnesium in one full-spectrum serving to help you relax, unwind, and sleep deeply so you wake up refreshed. Go to bioptimizers.com/ben and use code ben15 for 15% off any order. See omnystudio.com/listener for privacy information.

  • August 22 · 27 min

    Eat *This* If You Consume Seed Oils, Best Way To Combine Strength & Cardio, Peptide "Stacking" Rules & More! Solosode #504

    Full show notes: https://bengreenfieldlife.com/504 In this solosode, you'll get the latest research on three questions I keep getting asked. First, seed oils: a brand-new randomized controlled trial put 52 adults on either a low or a typical Western intake of linoleic acid for 12 weeks, and the results are important less for what they found than for what they didn't. You'll hear why arachidonic acid didn't move, why EPA dropped instead, what that does to your inflammatory balance, which seed oils I still think are worth avoiding, and the one dietary adjustment that matters most if seed oils are part of your diet. You'll also learn the surprisingly small amount of strength training that delivers the biggest longevity payoff, according to a 30-year study of more than 147,000 people, plus why pairing it with cardio is the single best exercise combination for blood pressure. I break down concurrent training, the interference effect between AMPK and mTOR, and when combining strength and cardio in one session helps you versus when it holds you back. Finally, I answer a listener question on peptides with six practical rules for stacking them safely, including which ones should never share a syringe, which ones cancel each other out at the receptor, and an honest look at how thin the human evidence really is behind the popular Wolverine stack. Episode Sponsors: Young Goose: Cutting-edge skincare that supports your skin's cellular health. Visit younggoose.com and use code BGF10 for 10% off. ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off. ButcherBox: Premium, responsibly sourced protein delivered to your door, from 100% grass-fed beef to pasture-raised chicken and wild-caught seafood. New customers get a free protein for a year, plus $20 off the first box and free shipping, at ButcherBox.com/BEN. Larine: A better-for-you chewing gum that uses nano-hydroxyapatite, the same mineral your tooth enamel is made of, to support stronger teeth and fresher breath. Visit BuyLarine.com/BEN to get up to 50% off your order. Nuchido: Nuchido TIME+ is a science-backed supplement that optimizes your body's NAD metabolism across multiple pathways to support energy, cognition, recovery, and vitality. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20%. See omnystudio.com/listener for privacy information.

  • August 20 · 57 min

    This 56 Year Old Mom Is Reversing Aging Faster Than Pro Biohackers On $106 A Month! With Julie Gibson Clark

    Full show notes: https://bengreenfieldlife.com/juliepodcast In this episode with Julie Gibson Clark, I'm highlighting a throwback conversation because the gap it exposed has only gotten wider. There's a leaderboard called the Rejuvenation Olympics where people submit a blood test that measures how fast they're aging. When we recorded, Julie was a 55-year-old single mom in Phoenix making under $100,000 a year, sitting at number two in the world, aging at roughly two-thirds the speed of the calendar, and ahead of people like Bryan Johnson, who was spending $2 million a year chasing the same number. Her budget was $27 a month for a gym membership and $79 a month for a supplement. This February, Bryan Johnson opened an elite longevity program at $1 million a year with three spots, an interview process, and a requirement that you hire a dedicated assistant to keep up with the protocol. You'll learn what Julie actually does: sleep protected like it's sacred, walking and rucking, strength training and VO2 max work, a pile of vegetables every day, one supplement, prayer, and stillness. Nothing that requires an executive assistant. You'll also hear her full health history, from heavy metal toxicity and chelation therapy to the genetics that shaped her approach, exactly what she eats and when, her supplement stack, her sleep and sauna routines, and why she refuses to name a target lifespan. Now 56 and teaching as founding faculty at a longevity academy, Julie is proof that the affordable end of longevity practice still gets you remarkably far. Episode Sponsors: Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels, resilience to everyday stress, and overall well-being, and the only one that meets U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. ZBiotics Pre-Alcohol Probiotic: The world's first genetically engineered probiotic that helps break down the toxic byproduct of alcohol so you can enjoy your night out and feel great the next day. 100% money-back guarantee and 15% off your first order at zbiotics.com/BEN15. Tiny Health: An at-home microbiome test that uses metagenomic sequencing to analyze your full gut ecosystem and give personalized, evidence-based diet, lifestyle, and supplement recommendations. Get $50 off your first kit at TinyHealth.com/BEN. ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off. TruDiagnostic: An advanced at-home epigenetic test measuring over a million biomarkers for personalized, data-driven insights into your aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off. See omnystudio.com/listener for privacy information.

  • August 15 · 1 hr

    From Cocaine Dealing & Prison To #1 Health Podcast In The World, With Dylan Gemelli.

    Full show notes: https://bengreenfieldlife.com/dylan In this episode with Dylan Gemelli, you'll hear one of the wildest origin stories in the health world. Dylan went from college athlete to Milan model to cocaine dealer to a 15-year prison sentence, and came out on the Fourth of July with two felonies, no job prospects, and a decision to start over. Within a year he had a million YouTube subscribers explaining compounds almost nobody was talking about yet, and today he hosts the number one health and fitness podcast in the country. You'll also get the practical side: what SARMs really are and why he turned against steroids, what happened when a routine calcium score came back at 120 with an Lp(a) of 330, how he pushed back against the Mayo Clinic and got that number down into the 90s anyway, and what he learned about ejection fraction and chronic cardio the hard way. Dylan explains why he believes many biohackers are among the unhealthiest people out there, how stacking too many supplements and peptides creates redundancy that backfires, and which lesser-known peptides will rise in popularity. Episode Sponsors: LMNT: Everyone needs electrolytes, especially those on low-carb diets, who fast, are physically active, or sweat a lot. Go to DrinkLMNT.com/BenGreenfield to get a free sample pack with your purchase. Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels, resilience to everyday stress, and overall well-being, and the only one that meets U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. Manukora: You haven't tasted honey like this before, so try some honey with superpowers from Manukora. Head to manukora.com/ben or use code BEN to get $25 off your Starter Kit. Quantum Upgrade: Research shows the Quantum Upgrade increased ATP production in human cells by 20 to 25%. Unlock a 15-day free trial with code BEN15 at quantumupgrade.io. Active Skin Repair: Uses hypochlorous acid, a molecule your body naturally produces, to support skin repair and defense without harsh chemicals. Go to ActiveSkinRepair.com and use code BEN for 20% off, or find it on Amazon and at your local CVS. See omnystudio.com/listener for privacy information.

  • August 13 · 50 min

    Is This The Most Powerful Adaptogenic Plant Extract Known To Humankind? The SCIENCE of Black Seed Oil with Dr. Michael Murray

    Full show notes: https://bengreenfieldlife.com/blackseedoil In this episode with Dr. Michael Murray, one of the most respected figures in natural medicine and the formulator of ThymoQuin®, you'll discover the science behind black seed oil: what thymoquinone actually is, why the full spectrum of the seed's compounds matters more than chasing a single active ingredient, and why it may be the most powerful adaptogen yet measured for lowering cortisol, dropping the stress hormone 22 to 44% in stressed people. You'll hear how it supports your gut by calming harmful bacteria without wiping out the good ones, the surprising dose range where it helps rather than harms your microbiome, and its effects on inflammation, metabolic health, blood pressure, blood sugar, sleep, and candida. Dr. Murray also explains what makes his USP-monographed ThymoQuin different from ordinary black seed oil, why keeping free fatty acids low keeps it active, how to spot adulterated products, and the simple daily protocol he follows himself at 68. It's a grounded, myth-busting look at one of the oldest plant medicines on earth. Episode Sponsors: Just Thrive: The Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters, 12 science-backed herbs that support digestion and GLP-1 production. Visit justthrivehealth.com/BEN and save 20% with code BEN, or get a full refund if you don't notice a difference. Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB), the same ketone your body makes in ketosis, for clean cognitive support and stable energy with no conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order. Young Goose: Cutting-edge skincare that supports your skin's cellular health. Visit younggoose.com and use code BGF10 for 10% off. Sunlighten: Patented infrared sauna technology delivering near-, mid-, and far-infrared wavelengths to reduce inflammation, boost mitochondrial function, and enhance detox and recovery. Save up to $1,600 at get.sunlighten.com/ben with code BEN. Nuchido: Nuchido TIME+ is a science-backed supplement that optimizes your body's NAD metabolism across multiple pathways to support energy, cognition, recovery, and vitality. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20%. BON CHARGE: A holistic wellness brand whose products help you sleep better, recover faster, balance hormones, and reduce inflammation. Go to boncharge.com/GREENFIELD and use code GREENFIELD to save 15%. See omnystudio.com/listener for privacy information.

  • August 8 · 52 min

    In Defense Of Sunlight: The *Real Truth* About The Sun, Vitamin D, UVA, UVB, Sunscreen & More, With Rowan Jacobsen.

    Full show notes: https://bengreenfieldlife.com/sunpodcast In this episode, journalist Rowan Jacobsen, author of In Defense of Sunlight, challenges everything you thought you knew about sun exposure. Modeled after Michael Pollan's In Defense of Food, his book argues we've been gaslit into a "zero-sun policy" the science does not actually support. You'll hear why melanoma is tied to intermittent sunburns rather than steady sun, the surprising 2024 research suggesting UVB may be protective while UVA is the real concern, and how office culture, window glass, and car windows may all be hidden pieces of the skin cancer puzzle. You'll also learn why the vitamin D supplement story is more complicated than the pills suggest, how sunlight lowers blood pressure through nitric oxide and lifts your mood through natural opioids, where sunscreen genuinely helps and where hats and shirts do better, what to make of the new sunscreen ingredient Bemotrizinol, and how a simple 30-day reset of your light exposure could transform your sleep. Episode Sponsors: Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels and resilience to everyday stress, and the only one meeting U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. Hiya: Give your kids the full-body nourishment they need in a best-selling children's vitamin. Get 50% off your first order at hiyahealth.com/BEN (it is not available on their regular website). ButcherBox: Premium, responsibly sourced meat and seafood delivered to your door. New customers can choose a free protein for a year, plus $20 off the first box and free shipping, at ButcherBox.com/BEN. TruDiagnostic: An advanced at-home epigenetic test measuring over a million biomarkers for personalized, data-driven insights into your aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off. See omnystudio.com/listener for privacy information.

  • August 6 · 1 hr 13 min

    BIG Peptide News (Must-Listen!): What Really Happened In Washington DC & A 7 Peptide Breakdown, With Dr. Matt Cook.

    Full show notes: https://bengreenfieldlife.com/peptides2026 In this episode with Dr. Matt Cook, recorded days after he returned from Washington, D.C., you'll get a breakdown of what just happened to peptides in the United States. You'll hear what the FDA's Pharmacy Compounding Advisory Committee actually voted on, why seven popular peptides were pulled two years ago, which six of the seven were just recommended for the bulk list, which one was left off, and what all of it means for your ability to get peptides legally from a pharmacy instead of the gray market. You'll also get a guided tour of the peptides themselves: BPC-157 for gut and tissue healing, KPV for inflammation, TB-500 for cell migration and wound repair, MOTS-c as an exercise mimetic, Semax for memory and learning, Epitalon for sleep and longevity, and DSIP for sleep. Dr. Cook explains why peptides behave so differently from ordinary drugs, walks through a safety review covering millions of doses, and shows how his company LifeOS pulls your labs, wearables, and genetics into one HIPAA-compliant place. And if you want to keep every peptide straight, Dr. Cook built a peptide cheat sheet covering what each one does, how to dose it, and where to source it. Episode Sponsors: Timeline: Give your cells new life with high-performance products powered by Mitopure, which unlocks a precise dose of the rare Urolithin A molecule to promote healthy aging. Mitopure now starts at $79 when you go to timeline.com/BEN. Xtendlife Prosta Support Advanced: Comprehensive daily prostate support combining clinically studied ingredients like saw palmetto and beta-sitosterol with vitamins, minerals, and botanicals. Visit Xtendlife.com/BensChoice and use code GREENFIELD for 15% off. Fatty15: Fatty15 is on a mission to optimize your C15:0 levels and help you live healthier, longer. Get an additional 15% off their 90-day subscription Starter Kit at fatty15.com/BEN with code BEN. BIOptimizers Magnesium Breakthrough: Seven essential forms of magnesium in one full-spectrum serving to help you relax, unwind, and sleep deeply so you wake up refreshed. Go to bioptimizers.com/ben and use code ben15 for 15% off any order. ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off. See omnystudio.com/listener for privacy information.

  • August 1 · 49 min

    The Breathwork-Cold Plunge Debate, When You *Shouldn’t* Do Wim Hof Breath & What Happens When 1 Million People Breathe Together

    Full show notes: https://bengreenfieldlife.com/nickpodcast In this episode, you'll get a practical, plain-language tour of breathwork with Nick Sweeney, a breathwork coach who rebuilt his body with breath after a college bike accident left him unable to walk. You'll learn his Vortex Breath and the Fibonacci counting behind it, why slow breathing is really cardiovascular training that may predict how long you live, how to pair breath with fascia and mobility work, his routines for better sleep and for combining sauna, breath, and cold safely, where he lands on the cold plunge debate, why the air you breathe matters as much as how you breathe, and his "Billions Will Breathe" mission to get a million (and eventually a billion) people breathing in sync. Nick is the founder of Coherence, a breathwork app that trains your nervous system to improve deep and REM sleep, HRV, and stress resilience. After doctors told him his skiing career was over, he went from unable to walk to competing at U.S. Nationals within a year using breathwork, cold, and nervous system work, and today he leads a global movement to have people breathe together as one. Want to breathe in sync with people around the world? You can grab Nick's Coherence app here and use code BEN30 for four weeks free. Episode Sponsors: Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB), the same ketone your body makes in ketosis, for clean cognitive support and stable energy with no conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order. Quantum Upgrade: Research shows the Quantum Upgrade increased ATP production in human cells by 20 to 25%. Unlock a 15-day free trial with code BEN15 at quantumupgrade.io. Our Place: Say goodbye to forever chemicals in your kitchen. Go to fromourplace.com/ben and enter code BEN at checkout for 10% off sitewide. BON CHARGE: A holistic wellness brand whose products help you sleep better, recover faster, balance hormones, and reduce inflammation. Go to boncharge.com/GREENFIELD and use code GREENFIELD to save 15%. Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels and resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. See omnystudio.com/listener for privacy information.

  • July 30 · 49 min

    What Body Fat % Is The Most "Attractive" (& How Low is TOO Low), How To Shorten Your Gym Time, Is Creatine Bad For Your Kidneys & More! Solosode 503

    Full Show Notes: https://bengreenfieldlife.com/503 In this solosode, you'll get the latest research on the questions I hear most: whether the peptide BPC 157 can cause cancer, the body fat percentages people rate most attractive for men and women (and how low is too low), how a "dad bod" before conception can affect your future kids' health, how "myo-reps" deliver the same strength and size gains in a fraction of your gym time, and whether creatine is bad for your kidneys. You'll hear why BPC 157's blood-vessel growth is not the same as the way cancer feeds a tumor and why healthy tissue has nothing to fear from it, how excess body fat quietly lowers testosterone, and why the most attractive body fat ranges line up almost perfectly with the ranges that support healthy testosterone, fertility, and a long life. You'll also walk away with the body fat targets actually worth aiming for, a simple way to shorten your time in the gym, and the creatine myths you can finally stop worrying about. Episode Sponsors: ULTRA: A clean, nicotine-free, caffeine-free pouch that delivers smooth, sustained energy and focus without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off. ButcherBox: Premium, responsibly sourced meat and seafood delivered to your door. New customers get a free protein of their choice for a year, plus $20 off the first box, at ButcherBox.com/BEN. Tiny Health: An at-home microbiome test that maps your full gut ecosystem and gives personalized, evidence-based diet, lifestyle, and supplement recommendations. Get $50 off your first kit at TinyHealth.com/BEN. Qualia Stem Cell: A science-backed supplement that supports your body's own stem cell function for recovery and healthy aging, taken just four days a month. Visit qualialife.com/boundless and use code BOUNDLESS for 15% off. Young Goose: Cutting-edge skincare that supports your skin's cellular health. Visit younggoose.com and use code BGF10 for 10% off. See omnystudio.com/listener for privacy information.

  • July 25 · 59 min

    Hunting, Spearfishing & The Truth About Cannabis: A Father-Sons Florida Adventure with Adam Wenguer

    Full show notes: https://bengreenfieldlife.com/floridahunt In this episode, recorded at Lightsey Family Ranch in Venus, Florida, I'm joined by my sons River and Terran and repeat guest Adam Wenguer, founder of Element Health, for the first stop in a father-and-sons adventure project inspired by former Boundless guest Sahil Bloom's The 5 Types of Wealth. You'll hear the ethics and deeper meaning of hunting, why harvesting your own meat changes your relationship with food, and how to cook wild game so it actually tastes great. We also get into spearfishing and free diving, teaching kids breath work and comfort with heat and cold from a young age, and a grounded, plain-language look at cannabis and the endocannabinoid system, including how CBD, CBG, and CBN each work. Adam is a University of Florida graduate in applied physiology and kinesiology who spent more than a decade as a strength, conditioning, and health coach at a five-star wellness resort before founding Element Health in 2017. He is a Brazilian jiu-jitsu black belt, a meditation practitioner, and a passionate advocate for ethical, conscious hunting, and he lives on a farm in Florida with his family. Want to try Adam's full-spectrum CBD for yourself? You can check out Element Health here (use code BEN15 to save 15% off). Episode Sponsors: BIOptimizers Magnesium Breakthrough: Seven essential forms of magnesium in one full-spectrum serving to help you relax, unwind, and sleep deeply so you wake up refreshed and alert. Go to bioptimizers.com/ben and use code ben15 for 15% off any order. ZBiotics Pre-Alcohol Probiotic: The world's first genetically engineered probiotic that breaks down the toxic byproduct of alcohol so you can enjoy your night out and feel great the next day. 100% money-back guarantee and 15% off your first order at zbiotics.com/BEN15. JOYMODE: Spice things up in the bedroom and boost sexual performance naturally, without prescription drugs. Visit tryjoymode.com/BEN or enter BEN at checkout for 20% off your first order. Quantum Upgrade: Research shows the Quantum Upgrade increased ATP production in human cells by 20 to 25%. Unlock a 15-day free trial with code BEN15 at quantumupgrade.io. See omnystudio.com/listener for privacy information.

  • July 23 · 48 min

    Dynorphins, Heat Shock Proteins & The Healthiest, Hottest Sauna On The Planet, with Luke Chapman & Owen Buchanan

    Full show notes: https://bengreenfieldlife.com/saunapodcast In this episode with Luke Chapman and Owen Buchanan, founders of Western Sol, you'll hear the story behind the custom sauna I recently had built in my backyard in Idaho, and the story behind the company itself, which started when a mold exposure in Hawaii sent Luke into daily sauna use. You'll gain insights into the actual science of heat shock proteins and dynorphins (the opioid peptides your body releases under heat stress), why most sauna wood is loaded with VOCs, and how thermally pressed aspen and spruce sourced from Estonia solves that problem entirely. We'll also touch on how Western Sol engineers oxygen-rich air recirculation, Himalayan salt therapy, and even full electrical grounding directly into the sauna floor, and you'll get a full walkthrough of what it costs to get a custom or prefabricated sauna built. Luke Chapman and Owen Buchanan are the founders of Western Sol, a custom and prefabricated sauna company based in Idaho. Both grew up around custom home construction in their family businesses before turning their focus toward building non-toxic, low-VOC saunas designed to support healing of the mind, body, and soul. They travel throughout Europe to source materials and study traditional sauna culture at its origin. You can find out more about Western Sol and schedule a free consultation here. Episode Sponsors: Dr. Murray Natural Products ThymoQuin: A clinically researched black seed oil formulated to support healthy cortisol levels and resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off. Manukora: Honey with superpowers. Head to manukora.com/ben or use code BEN to get $25 off your Starter Kit. Just Thrive: The Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters, a blend of 12 science-backed herbs. Visit justthrivehealth.com/BEN and save 20% with code BEN, or get a full refund if you don't notice a difference. ULTRA: A clean, nicotine-free, caffeine-free pouch delivering smooth, sustained energy and focus using clinically backed nootropics and adaptogens. Visit takeultra.com and use code BENGREENFIELD for 15% off. TruDiagnostic: An advanced at-home epigenetic test measuring over a million biomarkers for personalized insights into aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off. BON CHARGE: A holistic wellness brand with products that address sleep, performance, recovery, hormone balance, and inflammation. Go to boncharge.com/GREENFIELD and use code GREENFIELD to save 15%. See omnystudio.com/listener for privacy information.

  • July 18 · 1 hr 2 min

    Why Do We Still Use 150-Year-Old Technology To Measure the #1 Killer of Humans Worldwide? The New Approach To Blood Pressure Measurement With Tom Moss.

    Full show notes: https://bengreenfieldlife.com/signalspodcast In this episode with Tom Moss, founder and CEO of Vital Signals, you'll hear how a near-fatal hypertensive crisis during a family vacation became the founding moment for a device that may finally solve the problem of getting accurate blood pressure readings in real life without a cuff. Tom explains why blood pressure is the single most important indicator of long-term cardiovascular health and yet one of the least accurately measured, what the cuff gets wrong, and how Vital Signals achieved the scientific breakthrough that other companies failed to crack: accurate, calibration-free blood pressure monitoring from a ring. You'll also hear about the interplay between sleep, stress, hormones, sauna, cold, and blood pressure, what the Signal Ring's data is already revealing about human arterial health, and where this technology could go over the next decade. Tom Moss is the founder and CEO of Vital Signals, building at the intersection of heart health, technology, and everyday behavior. After his experience with undiagnosed hypertension, he became focused on why some of the most critical health signals remain so difficult and often stressful to understand. Pre-order your Signal Ring from LIFE Market and measure your blood pressure without the cuff. Ships October 2026. Episode Sponsors: Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB) for clean cognitive support, stable energy, and performance without the conversion step required by many ketone precursors. Visit tectonketones.com/ben and use code BEN for 16% off your first order. Dr. Murray Natural Products ThymoQuin: A clinically researched black seed oil formulated to support healthy cortisol levels and resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off. LYMA Laser: An advanced at-home skin technology backed by peer-reviewed research showing it influenced 45 genes in human skin compared to just one for an equivalent LED device. Visit lyma.life and use code BEN10 for 10% off for a limited time. Qualia Stem Cell: A science-backed supplement that supports your body's natural repair system by enhancing stem cell function, taken just four days per month. Visit qualialife.com/boundless and use code BOUNDLESS for 15% off. See omnystudio.com/listener for privacy information.

  • July 16 · 58 min

    The Exciting FUTURE of AI-Based Medicine: How Patients Save Money & Doctors Save Time! with KJ Dhaliwal

    Full show notes: https://bengreenfieldlife.com/lotus In this episode with KJ Dhaliwal of Lotus AI, you'll hear how translating his immigrant parents' doctor visits as a child and years spent bouncing through fragmented specialty care as a teenager after a disc herniation shaped his mission to give 100 million Americans free, world-class primary care using AI. KJ breaks down how Lotus AI pulls your entire medical history from every clinic and hospital you've ever visited in minutes, unifies it with your wearables and genetic data, and makes it available to both a conversational AI and a network of real licensed physicians who can diagnose you, prescribe treatment, and refer you to a specialist in under two minutes at any hour of the day. We also touch on why hospitals are quietly selling your health data to pharma, how the business model works when the product is free, and why KJ believes the AI-powered general doctor is not just possible but already happening. KJ Dhaliwal is the founder and CEO of Lotus AI. Before Lotus, he co-founded the largest South Asian dating app, which he grew and sold. At Lotus AI, his mission is to collapse the cost of healthcare delivery while making world-class primary care free and permanently accessible to every American. Download the Lotus AI app here. If you are a physician, visit lotus.ai and sign up for Lotus Cortex. Episode Sponsors: Anthros: You can train hard and still undo a lot of that progress by sitting for the next eight hours, which is why Anthros takes a different approach, starting with a Precision Posture System at the pelvis so your spine naturally aligns, plus a built-in Clinical Posture Consult that helps identify issues you may not even realize you have. Go to anthros.com and use code BEN for an exclusive $200 discount and try it risk-free for 60 days. 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. Mitopure now starts at $79 when you go to timeline.com/BEN. 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. Dr. Murray Natural Products – ThymoQuin®: ThymoQuin® is a clinically researched black seed oil formulated to support healthy cortisol levels, improve resilience to everyday stress, and promote overall well-being. It's the only black seed oil that meets U.S. Pharmacopeia guidelines and is backed by human clinical research. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. Qualia Stem Cell: Qualia Stem Cell is a science-backed supplement designed to support your body’s natural repair system by enhancing stem cell function, helping you recover, renew, and maintain healthy tissues as you age. Taken just four days per month and formulated with premium, clinically supported ingredients, it’s an easy way to support long-term healing and vitality. Visit qualialife.com/boundless and use code BOUNDLESS for 15% off. See omnystudio.com/listener for privacy information.

  • July 11 · 56 min

    The Potent Brain & Body Ketone Fuel You’ve Probably Never Heard Of: The Science Of R3HBG With Tecton’s Dr. Mike Chesne

    Full show notes: https://bengreenfieldlife.com/tectonpodcast In this episode with Dr. Mike Chesne, founder of Tecton Ketones™, you'll hear how a traumatic brain injury sustained in combat led him from Army Special Forces medic to ketone biochemist, and why he eventually built what he believes is a meaningfully better exogenous ketone molecule than anything else currently on the market. We get into the real biochemical differences between ketone salts, ketone esters, and bioidentical beta-hydroxybutyrate, why the liver matters so much in how these molecules get metabolized, and a full walkthrough of Tecton's plant-based liposomal delivery system. You'll also hear about all four Tecton product formulations, the dual agonist effect ketones may have on hunger and fullness signaling, and the proposed mechanism behind why ketones may improve exercise recovery. Dr. Mike Chesne founded Tecton after a 25-year career in United States Army Special Operations. His interest in exogenous ketones began after researching a DARPA-funded project led by Oxford University and the NIH. Use code BEN for 16% off your entire order at bengreenfieldlife.com/tecton. Episode Sponsors Young Goose: To experience the transformative power of Young Goose's cutting-edge skincare products, visit younggoose.com and use code BGF10 at checkout to enjoy a 10% discount on your order. TruDiagnostic: TruDiagnostic is an advanced at-home health test that uses epigenetic analysis to measure over a million biomarkers, giving you personalized, data-driven insights into your aging, energy, and overall health so you can stop guessing and start optimizing with a clear plan. Visit TruDiagnostic.com and use code BEN20 for 20% off. 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 $1,600 at get.sunlighten.com/ben with code BEN. LYMA Laser: The LYMA Laser is an advanced at-home skin technology backed by peer-reviewed research showing it influenced 45 genes in human skin compared to just one for an equivalent LED device. Users report smoother skin texture, more even tone, and visible improvements in overall skin appearance. Visit lyma.life and use code BEN10 for 10% off for a limited time. Dr. Murray Natural Products – ThymoQuin®: ThymoQuin® is a clinically researched black seed oil formulated to support healthy cortisol levels, improve resilience to everyday stress, and promote overall well-being. It's the only black seed oil that meets U.S. Pharmacopeia guidelines and is backed by human clinical research. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products. 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%. See omnystudio.com/listener for privacy information.

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