This episode I discuss metabolism and how our thyroid hormone and growth hormone control our metabolism. I also clarify that metabolism isn't just about burning energy, it’s about converting energy from different sources into fuels for building and repairing our tissues such as muscle, brain, and tendons and mobilizing energy from body fat storage. I discuss the role of iodine, selenium, and salt for thyroid health, and how specific exercise protocols, amino acids and temperature can dramatically shift levels of growth hormone release in waking and in sleep. I also describe the current landscape of prescription compounds, peptides and other factors for changing levels of thyroid and growth hormone, and some of their risks. Throughout the episode, mechanism and tools grounded in specific mechanisms are discussed. Thank you for your interest in science!
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Link to recent study on thermal stress and hormones:
Endocrine Effects of Repeated Hot Thermal Stress and Cold Water Immersion in Young Adult Men. - https://pubmed.ncbi.nlm.nih.gov/33845653/ ?
Timestamps:
00:00:00 Introduction00:06:05 Thyroid & Growth Hormone00:08:44 Food Shapes: Do They Matter?00:11:43 Stevia: Naming & Impact00:13:30 Metabolism 101: Your Brain the Furnace00:17:33 Releasing Hormones From Your Brain, Stimulating Hormones from Your Pituitary00:21:04 Thyroid Hormone’s Real Effects: Growth, Repair and Energy Consumption of Tissues00:22:45 Iodine, L-Tyrosine & Selenium: The Trio Essential For Thyroid Function00:26:05 How Much Iodine Do We Need? By Food, Supplement or Ocean Air00:28:09 Selenium For Thyroid: Brazil Nuts & Other Valuable Sources00:33:05 Selenium For Pregnancy, Prostate Cancer Risk, Acne00:35:20 “Clean Eating” Downsides: Cruciferous Vegetables, Leeching Iodine00:39:00 Other Benefits of Iodine: Reducing Inflammation00:41:00 Why & How Increased Thyroid Increases Metabolism00:42:12 What To Eat To Support Your Brain00:43:00 Hyperthyroidism (Too Much) & Hypothyroidism (Too Little)00:44:35 Menstruation: Thyroid Carbohydrate & Sugar Craving00:45:33 Ketogenic Diet & Its Effects On Thyroid, Rebound Weight Gain00:48:39 Growth Hormone: What, Why & How00:51:18 Growth Hormone (GH) Changes Across The Lifespan & Risks of GH Therapy00:53:40 How To Powerfully Increase Growth Hormone: Know The Natural Triggers00:54:49 Not Eating Within 2hrs of Sleep: Keep Blood Glucose Low(ish) At Sleep00:55:43 Delta Wave Brain Activity Is the Trigger For Growth Hormone Release00:58:25 LOW Doses of Melatonin Supplementation For Increasing GH Release01:01:00 Book: Altered Traits, Binaural Beats? Delta Waves Access01:04:35 Specific Types & Duration of Exercise That Stimulate Growth Hormone & Warmups01:08:40 Keeping Low Blood Glucose & Ensuring A Cool Down For Two Phase GH Release01:10:36 Sex Differences For WHEN During Exercise Growth Hormone and IGF-1 Release Occurs: Males Have To Last Longer01:14:10 Supplements That Increase Growth Hormone 100-400% (or more): Arginine, Ornithine01:18:20 Arginine & Exercise Together Can Be Counter-Productive01:19:50 L-Citrulline Better For Arginine Than Arginine Itself (?!); & Blood Pressure Caution01:23:09 Growth Hormone Changes Across The Lifespan: No One Escapes01:26:00 Heat (& Cold) for Triggering Extremely Large Increases In Growth Hormone01:29:20 Specific Heat Protocols For Increasing Growth Hormone: Up To 16-Fold (?!)01:34:30 2021 (New) Study: Heat Increases GH, & Lowers Cortisol, No Effects On Testosterone, DHEA Or Prolactin01:36:00 Prescription Growth Hormone, & Emerging Peptides Therapeutics, Secretagogues Etc.01:42:25 Synthesis, Summary Of Actionable Steps For Increasing GH and Thyroid Hormone01:44:00 Zero Cost & Other Ways to Support Our Podcast; & Thank You! Please note that The Huberman Lab Podcast is distinct from Dr. Huberman's teaching and research roles at Stanford University School of Medicine. The information provided in this show is not medical advice, nor should it be taken or applied as a replacement for medical advice. The Huberman Lab Podcast, its employees, guests and affiliates assume no liability for the application of the information discussed.
[Title Card Photo Credit: Mike Blabac https://www.blabacphoto.com/]