Full show notes: BenGreenfieldLife.com/thyroidhealth

In this episode, I'm re-airing one of the most comprehensive thyroid conversations I've ever had, with repeat guest Dr. Amie Hornaman. Six doctors told her she was normal while she gained 25 pounds in contest prep, and the seventh finally found the goiter.

You'll hear why thyroid stimulating hormone (TSH) on its own misses most of the picture, how reverse T3 can block your active thyroid hormone at the cell door, and why only 2% of hypothyroid patients do well on T4 alone. We get into T2, the thyroid hormone almost nobody talks about, and the Thyroid Fixxr® (use code BEN10 for 10% off) I took to Italy.

Dr. Amie also covers what years of low-carb eating does to T3, whether animal glandulars help or backfire, where iodine and selenium fit, the peptides she uses for Hashimoto's, and why testosterone matters so much for women. If you've been told your thyroid labs are normal and you still feel terrible, this one is for you.

Episode Sponsors:

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Larine: A better-for-you chewing gum with 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 today.

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ULTRA: A clean, nicotine-free, and caffeine-free pouch for smooth, sustained energy and focus without the jitters or crash. Visit takeultra.com and use code BENGREENFIELD for 15% off.

Young Goose: Cutting-edge skincare products. Visit younggoose.com and use code BGF10 at checkout for 10% off your order.

Active Skin Repair: Non-toxic skin support with hypochlorous acid, a molecule your body naturally produces. Go to ActiveSkinRepair.com and use code BEN for 20% off, or find it on Amazon and at your local CVS.

Full show notes:<a href="https://bengreenfieldlife.com/thyroidhealth"> BenGreenfieldLife.com/thyroidhealth</a>
In this episode, I'm re-airing one of the most comprehensive thyroid conversations I've ever had, with repeat guest<a href="https://www.instagram.com/dramiehornaman/"> Dr. Amie Hornaman</a>. Six doctors told her she was normal while she gained 25 pounds in contest prep, and the seventh finally found the goiter.
You'll hear why<a href="https://www.ncbi.nlm.nih.gov/books/NBK499850/"> thyroid stimulating hormone</a> (TSH) on its own misses most of the picture, how reverse T3 can block your active thyroid hormone at the cell door, and why only 2% of hypothyroid patients do well on T4 alone. We get into T2, the thyroid hormone almost nobody talks about, and the<a href="https://bengreenfieldlife.com/fixxr"> Thyroid Fixxr&reg;</a> (use code BEN10 for 10% off) I took to Italy.
Dr. Amie also covers what years of low-carb eating does to T3, whether animal glandulars help or backfire, where iodine and selenium fit, the peptides she uses for Hashimoto's, and why testosterone matters so much for women. If you've been told your thyroid labs are normal and you still feel terrible, this one is for you.
Episode Sponsors:
<a href="http://fromourplace.com/ben">Our Place:</a> Upgrade to Our Place today and say goodbye to forever chemicals in your kitchen. Go to<a href="http://fromourplace.com/ben"> fromourplace.com/ben</a> and enter my code BEN at checkout to receive 10% off sitewide.
<a href="https://buylarine.com/BEN">Larine</a>: A better-for-you chewing gum with nano-hydroxyapatite, the same mineral your tooth enamel is made of, to support stronger teeth and fresher breath. Visit<a href="https://buylarine.com/BEN"> BuyLarine.com/BEN</a> to get up to 50% off your order today.
<a href="https://bengreenfieldfitness.com/trudiagnostictest">TruDiagnostic</a>: An at-home epigenetic test that measures over a million biomarkers for personalized insights into your aging, energy, and health. Visit<a href="https://bengreenfieldfitness.com/trudiagnostictest"> TruDiagnostic.com</a> and use code BEN20 for 20% off.
<a href="https://bengreenfieldlife.com/ultra">ULTRA</a>: A clean, nicotine-free, and caffeine-free pouch for smooth, sustained energy and focus without the jitters or crash. Visit<a href="https://takeultra.com"> takeultra.com</a> and use code BENGREENFIELD for 15% off.
<a href="https://bengreenfieldlife.com/younggoosepodcastads">Young Goose</a>: Cutting-edge skincare products. Visit<a href="https://bengreenfieldlife.com/younggoosepodcastads"> younggoose.com</a> and use code BGF10 at checkout for 10% off your order.
<a href="https://activeskinrepair.com">Active Skin Repair</a>: Non-toxic skin support with hypochlorous acid, a molecule your body naturally produces. Go to<a href="https://activeskinrepair.com"> ActiveSkinRepair.com</a> and use code BEN for 20% off, or find it on Amazon and at your local CVS.

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.

Boundless Life

How Fixing Your THYROID Improves Fat Loss, Hair, Skin & Energy, With Dr. Amie Hornaman

Full show notes: BenGreenfieldLife.com/ultimatelongevity

In this episode, I'm pulling the best of three longevity conversations into a best-of compilation: blood oxygen as the root of nearly every disease pathway, the molecule that clears out your worn-out mitochondria, and a 61-year-old engineer who is out-aging tech billionaires on a normal budget. All three come at the same problem from completely different directions.

First, Gary Brecka on what two decades of predicting death for life insurance companies revealed, why he says the presence of oxygen is the absence of disease, and the magnetism, oxygen and light protocol he built out of it, including a budget version of exercise with oxygen therapy you can do with a training mask.

Then Dr. Anurag Singh on the three ways your immune system ages, why he thinks immune aging drives the rest of aging, and what the Mito-Immune trial found when middle-aged adults took Mitopure® (use code BEN20 for 20% off) for four weeks.

And finally Dave Pascoe, who got the telomeres of a 68-year-old at age 50, turned it around, and now posts a pace of aging near the top of the Rejuvenation Olympics leaderboard while eating two meals at a sitting and taking no testosterone. I also share the red light routine I run for the first hour of every morning.

Episode Sponsors:

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Quantum Upgrade: Research shows the Quantum Upgrade increased ATP production by 20–25% in human cells. Unlock a 15-day free trial with code BEN15 at quantumupgrade.io.

BIOptimizers Magnesium Breakthrough Advanced 10: 10 bioavailable forms of magnesium with active vitamin B6 and ionic trace minerals for sleep, recovery, stress, and metabolic health. Go to bioptimizers.com/ben and use code ben15 for 15% off any order.

Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB) for clean cognitive support and stable energy without the conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order.

BON CHARGE: Holistic wellness products to help you sleep better, recover faster, balance hormones, and reduce inflammation. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%.

Full show notes: <a href="https://bengreenfieldlife.com/ultimatelongevity">BenGreenfieldLife.com/ultimatelongevity</a>
In this episode, I'm pulling the best of three longevity conversations into a best-of compilation: blood oxygen as the root of nearly every disease pathway, the molecule that clears out your worn-out mitochondria, and a 61-year-old engineer who is out-aging tech billionaires on a normal budget. All three come at the same problem from completely different directions.
First,<a href="https://www.instagram.com/garybrecka/"> Gary Brecka</a> on what two decades of predicting death for life insurance companies revealed, why he says the presence of oxygen is the absence of disease, and the magnetism, oxygen and light protocol he built out of it, including a budget version of exercise with oxygen therapy you can do with a training mask.
Then<a href="https://www.timeline.com/about"> Dr. Anurag Singh</a> on the three ways your immune system ages, why he thinks immune aging drives the rest of aging, and what the<a href="https://www.nature.com/articles/s43587-025-00996-x"> Mito-Immune trial</a> found when middle-aged adults took<a href="https://www.timeline.com/ben"> Mitopure&reg;</a> (use code BEN20 for 20% off) for four weeks.
And finally<a href="https://www.instagram.com/dave.pascoe/"> Dave Pascoe</a>, who got the telomeres of a 68-year-old at age 50, turned it around, and now posts a pace of aging near the top of the Rejuvenation Olympics leaderboard while eating two meals at a sitting and taking no testosterone. I also share the red light routine I run for the first hour of every morning.
Episode Sponsors:
<a href="https://get.sunlighten.com/ben">Sunlighten</a>: Patented near-, mid-, and far-infrared sauna technology to reduce inflammation, boost mitochondrial function, and optimize recovery. Save up to $1,600 at <a href="https://get.sunlighten.com/ben">get.sunlighten.com/ben</a> with code BEN.
<a href="https://quantumupgrade.io/">Quantum Upgrade</a>: Research shows the Quantum Upgrade increased ATP production by 20&ndash;25% in human cells. Unlock a 15-day free trial with code BEN15 at <a href="https://quantumupgrade.io/">quantumupgrade.io</a>.
<a href="https://bioptimizers.com/ben">BIOptimizers Magnesium Breakthrough Advanced 10</a>: 10 bioavailable forms of magnesium with active vitamin B6 and ionic trace minerals for sleep, recovery, stress, and metabolic health. Go to <a href="https://bioptimizers.com/ben">bioptimizers.com/ben</a> and use code ben15 for 15% off any order.
<a href="https://tectonketones.com/ben">Tecton Ketones</a>: Bioidentical D-beta-hydroxybutyrate (BHB) for clean cognitive support and stable energy without the conversion step. Visit <a href="https://tectonketones.com/ben">tectonketones.com/ben</a> and use code BEN for 16% off your first order.
<a href="https://boncharge.com/pages/affiliates/greenfield?bchref=greenfield">BON CHARGE</a>: Holistic wellness products to help you sleep better, recover faster, balance hormones, and reduce inflammation. Go to <a href="https://boncharge.com/pages/affiliates/greenfield?bchref=greenfield">boncharge.com/GREENFIELD</a> and use coupon code GREENFIELD to save 15%.

Longevity MASTERCLASS: Biological Age, Mitochondrial Repair & The Superhuman Protocol

Full show notes: BenGreenfieldLife.com/drtyna

I'm re-airing my conversation with Dr. Tyna Moore about GLP-1s because almost everything she said about them is still being misunderstood, and she was one of the earliest voices advocating for using these drugs at very low doses. When we recorded, the internet had largely decided GLP-1 agonists were terrible: muscle wasting, "Ozempic face," suicidality, and more. Tyna's take was very different, and much of what she discussed has held up surprisingly well. Not everything, though. The big Alzheimer's trials found that GLP-1 treatment did not significantly slow disease progression.

I was the guinea pig for this one. The week before our interview, I injected one-tenth of the standard semaglutide dose, and Dr. Moore told me on air that even that was far too much for me. She was right. It took me three days to get through one porterhouse steak.

You'll hear what dosing for appetite control rather than appetite suppression actually looks like, why a natural GLP-1 stimulator may not do much if the gut cells that release GLP-1 have stopped responding, what the thyroid cancer black box warning is actually based on, what that widely shared suicidality study really measured, and how to protect your muscle while using these drugs. Dr. Tyna Moore also shares where she sends people now that she has stopped taking new patients, which is The Menopause Rebellion, her community for Gen X women covering hormones, metabolism, muscle building, GLP-1s, and peptides.

Episode Sponsors:

ALYA Health: A high-polyphenol, single-origin olive oil made from rare Tunisian Chetoui olives, designed to be taken as a daily shot before a meal. Visit AlyaHealth.com/s/ben or use code BEN for 20% off your first order.

JOYMODE: Want to spice things up in the bedroom, boost your sexual performance, and do it naturally without nasty prescription drugs? Visit tryjoymode.com/BEN or enter BEN at checkout for 20% off your first order of JOYMODE.

ULTRA: A clean, nicotine-free, and caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, with no jitters or crashes. Visit takeultra.com and use code BENGREENFIELD for 15% off.

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.

Full show notes: <a href="https://bengreenfieldlife.com/drtyna">BenGreenfieldLife.com/drtyna</a>
I'm re-airing my conversation with Dr. Tyna Moore about <a href="https://www.ncbi.nlm.nih.gov/books/NBK551568/">GLP-1s</a> because almost everything she said about them is still being misunderstood, and she was one of the earliest voices advocating for using these drugs at very low doses. When we recorded, the internet had largely decided GLP-1 agonists were terrible: muscle wasting, "Ozempic face," suicidality, and more. Tyna's take was very different, and much of what she discussed has held up surprisingly well. Not everything, though. The big Alzheimer's trials found that GLP-1 treatment did not significantly slow disease progression.
I was the guinea pig for this one. The week before our interview, I injected one-tenth of the standard <a href="https://shoplifemarket.com/">semaglutide</a> dose, and Dr. Moore told me on air that even that was far too much for me. She was right. It took me three days to get through one porterhouse steak.
You'll hear what dosing for appetite control rather than appetite suppression actually looks like, why a natural GLP-1 stimulator may not do much if the gut cells that release GLP-1 have stopped responding, what the thyroid cancer black box warning is actually based on, what that widely shared suicidality study really measured, and how to protect your muscle while using these drugs. <a href="https://www.instagram.com/drtyna/">Dr. Tyna Moore</a> also shares where she sends people now that she has stopped taking new patients, which is <a href="https://www.skool.com/drtyna/about">The Menopause Rebellion</a>, her community for Gen X women covering hormones, metabolism, muscle building, GLP-1s, and peptides.
Episode Sponsors:
<a href="https://alyahealth.com/s/ben">ALYA Health</a>: A high-polyphenol, single-origin olive oil made from rare Tunisian Chetoui olives, designed to be taken as a daily shot before a meal. Visit <a href="https://alyahealth.com/s/ben">AlyaHealth.com/s/ben</a> or use code BEN for 20% off your first order.
<a href="https://usejoymode.com/GREENFIELD">JOYMODE</a>: Want to spice things up in the bedroom, boost your sexual performance, and do it naturally without nasty prescription drugs? Visit <a href="https://tryjoymode.com/BEN">tryjoymode.com/BEN</a> or enter BEN at checkout for 20% off your first order of JOYMODE.
<a href="https://bengreenfieldlife.com/ultra">ULTRA</a>: A clean, nicotine-free, and caffeine-free pouch that delivers smooth, sustained energy and focus using clinically backed nootropics and adaptogens, with no jitters or crashes. Visit <a href="https://takeultra.com">takeultra.com</a> and use code BENGREENFIELD for 15% off.
<a href="https://doctormurray.com/ben">Dr. Murray Natural Products &ndash; ThymoQuin&reg;</a>: A clinically researched black seed oil that supports healthy cortisol levels and resilience to everyday stress. Visit <a href="https://doctormurray.com/ben">doctormurray.com/ben</a> and use code BEN25 for 25% off all Dr. Murray Natural Products.

How To Microdose GLP-1s Correctly: Lose The Fat, And KEEP The Muscle - With Dr. Tyna Moore

Full show notes:BenGreenfieldLife.com/AGIpodcast

In this episode, you'll hear how artificial intelligence is actually being pointed at aging right now, including an algorithm picking which Chinese herbs extend a fruit fly's life, plus whether the biological age test you just paid for means anything at all.

My guest is Dr. Ben Goertzel, who popularized the term artificial general intelligence, runs a decentralized AI network, and is chief scientist at Hanson Robotics. We get into the long-lived fruit flies his team works on at Genescient, the roughly five traditional Chinese herbs an AI selected from a database and combined in ways that more than double a middle-aged fly's life, and why the AI mixes them in combinations no Chinese medicine practitioner ever would. You'll also learn why he says today's biological age tests are "a little dodgy," why large language models keep handing you the existing literature instead of generating new science, and what the extracellular matrix has to do with whether your whole body is aging well. We close on the engineered enzymes he thinks will eventually re-sculpt the genome of every tissue in your body, my own follistatin gene therapy result, and the band he plays keyboards in with a humanoid robot lead singer.

Episode Sponsors:

Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil formulated to support healthy cortisol levels and resilience to everyday stress. It's the only black seed oil that meets U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.

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.

ALYA Health: A high-polyphenol, single-origin olive oil made from rare Tunisian Chetoui olives and designed to be taken as a daily shot before a meal. Visit AlyaHealth.com/s/ben or use code BEN for 20% off your first order.

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.

Nuchido: Support healthy aging at the cellular level with Nuchido TIME+, designed to optimize your body's NAD (nicotinamide adenine dinucleotide) metabolism across multiple pathways rather than a single ingredient. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20% on your order.

Full show notes:<a href="https://bengreenfieldlife.com/AGIpodcast"> </a><a href="https://bengreenfieldlife.com/AGIpodcast">BenGreenfieldLife.com/AGIpodcast</a>
In this episode, you'll hear how artificial intelligence is actually being pointed at aging right now, including an algorithm picking which Chinese herbs extend a fruit fly's life, plus whether the biological age test you just paid for means anything at all.
My guest is<a href="https://x.com/bengoertzel"> Dr. Ben Goertzel</a>, who popularized the term artificial general intelligence, runs a decentralized AI network, and is chief scientist at Hanson Robotics. We get into the long-lived fruit flies his team works on at<a href="https://www.genescient.com/"> Genescient</a>, the roughly five traditional Chinese herbs an AI selected from a database and combined in ways that more than double a middle-aged fly's life, and why the AI mixes them in combinations no Chinese medicine practitioner ever would. You'll also learn why he says today's biological age tests are "a little dodgy," why large language models keep handing you the existing literature instead of generating new science, and what the<a href="https://www.ncbi.nlm.nih.gov/books/NBK26810/"> extracellular matrix</a> has to do with whether your whole body is aging well. We close on the<a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138569"> engineered enzymes</a> he thinks will eventually re-sculpt the genome of every tissue in your body, my own follistatin gene therapy result, and the band he plays keyboards in with a humanoid robot lead singer.
Episode Sponsors:
<a href="https://doctormurray.com/ben">Dr. Murray Natural Products &ndash; ThymoQuin&reg;:</a> A clinically researched black seed oil formulated to support healthy cortisol levels and resilience to everyday stress. It's the only black seed oil that meets U.S. Pharmacopeia guidelines. Visit<a href="https://doctormurray.com/ben"> doctormurray.com/ben</a> and use code BEN25 for 25% off all Dr. Murray Natural Products.
<a href="https://bengreenfieldlife.com/younggoosepodcastads">Young Goose:</a> To experience the transformative power of Young Goose's cutting-edge skincare products, visit<a href="https://bengreenfieldlife.com/younggoosepodcastads"> younggoose.com</a> and use code BGF10 at checkout to enjoy a 10% discount on your order.
<a href="https://alyahealth.com/s/ben">ALYA Health:</a> A high-polyphenol, single-origin olive oil made from rare Tunisian Chetoui olives and designed to be taken as a daily shot before a meal. Visit<a href="https://alyahealth.com/s/ben"> AlyaHealth.com/s/ben</a> or use code BEN for 20% off your first order.
<a href="https://activeskinrepair.com">Active Skin Repair:</a> Uses hypochlorous acid, a molecule your body naturally produces, to support skin repair and defense without harsh chemicals. Go to<a href="https://activeskinrepair.com"> ActiveSkinRepair.com</a> and use code BEN for 20% off, or find it on Amazon and at your local CVS.
<a href="https://bengreenfieldlife.com/Nuchido">Nuchido:</a> Support healthy aging at the cellular level with Nuchido TIME+, designed to optimize your body's NAD (nicotinamide adenine dinucleotide) metabolism across multiple pathways rather than a single ingredient. Visit<a href="https://bengreenfieldlife.com/Nuchido"> BenGreenfieldLife.com/Nuchido</a> and use code BEN20 to save 20% on your order.

How Fixing Your THYROID Improves Fat Loss, Hair, Skin & Energy, With Dr. Amie Hornaman

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