Huberman Lab Folgen

This episode discusses 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, mechanisms and tools grounded in specific mechanisms are discussed. Supplements from Thorne https://www.thorne.com/u/huberman Timestamps (00:00:00) Introduction (00:06:05) Thyroid & Growth Hormone (00:08:44) Food Shapes: Do They Matter? (00:11:43) Stevia: Naming & Impact (00:13:30) Metabolism 101: Your Brain the Furnace (00:17:33) Releasing Hormones From Your Brain, Stimulating Hormones from Your Pituitary (00:21:04) Thyroid Hormone’s Real Effects: Growth, Repair and Energy Consumption of Tissues (00:22:45) Iodine, L-Tyrosine & Selenium: The Trio Essential For Thyroid Function (00:26:05) How Much Iodine Do We Need? By Food, Supplement or Ocean Air (00:28:09) Selenium For Thyroid: Brazil Nuts & Other Valuable Sources (00:33:05) Selenium For Pregnancy, Prostate Cancer Risk, Acne (00:35:20) “Clean Eating” Downsides: Cruciferous Vegetables, Leeching Iodine (00:39:00) Other Benefits of Iodine: Reducing Inflammation (00:41:00) Why & How Increased Thyroid Increases Metabolism (00:42:12) What To Eat To Support Your Brain (00:43:00) Hyperthyroidism (Too Much) & Hypothyroidism (Too Little) (00:44:35) Menstruation: Thyroid Carbohydrate & Sugar Craving (00:45:33) Ketogenic Diet & Its Effects On Thyroid, Rebound Weight Gain (00:48:39) Growth Hormone: What, Why & How (00:51:18) Growth Hormone (GH) Changes Across The Lifespan & Risks of GH Therapy (00:53:40) How To Powerfully Increase Growth Hormone: Know The Natural Triggers (00:54:49) Not Eating Within 2hrs of Sleep: Keep Blood Glucose Low(ish) At Sleep (00:55:43) Delta Wave Brain Activity Is the Trigger For Growth Hormone Release (00:58:25) LOW Doses of Melatonin Supplementation For Increasing GH Release (01:01:00) Book: Altered Traits, Binaural Beats? Delta Waves Access (01:04:35) Specific Types & Duration of Exercise That Stimulate Growth Hormone & Warmups (01:08:40) Keeping Low Blood Glucose & Ensuring A Cool Down For Two Phase GH Release (01:10:36) Sex Differences For WHEN During Exercise Growth Hormone and IGF-1 Release Occurs: Males Have To Last Longer (01:14:10) Supplements That Increase Growth Hormone 100-400% (or more): Arginine, Ornithine (01:18:20) Arginine & Exercise Together Can Be Counter-Productive (01:19:50) L-Citrulline Better For Arginine Than Arginine Itself (?!); & Blood Pressure Caution (01:23:09) Growth Hormone Changes Across The Lifespan: No One Escapes (01:26:00) Heat (& Cold) for Triggering Extremely Large Increases In Growth Hormone (01:29:20) 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 Prolactin (01:36:00) Prescription Growth Hormone, & Emerging Peptides Therapeutics, Secretagogues Etc. (01:42:25) Synthesis, Summary Of Actionable Steps For Increasing GH and Thyroid Hormone (01:44:00) Zero Cost & Other Ways to Support Our Podcast; & Thank You! Learn more about your ad choices. Visit megaphone.fm/adchoices

This episode I discuss how hormones from our gut, liver, pancreas and brain control our appetite--and the specific tools we can use to adjust those hormones in order to achieve specific goals. I explain the brain areas that control our desire to eat, and our desire to stop eating. I discuss a hormone we all can make that is regulated by UV-rays from sunlight that reduces our appetite. I also explain that when we eat controls our appetite and not the other way around (and how to leverage that fact). I describe how we are basically always eating until we reach a threshold level of fatty acids and amino acids in our gut and the factors that can alter that signaling and make us eat far more than we need. I also explain how insulin, glucose and glucagon work, why cholesterol is so key for ovary, adrenal, liver and testes function and how the ketogenic diet impacts glucose and thyroid levels. As always, I describe many tools: specific supplements, prescription compounds, specific types (and timing) of exercise to regulate hormones, specific timing and types of eating, ways to reduce sugar cravings by triggering release of the hormone CCK, and more. Note: A future episode will cover Thyroid hormone. Also, I mis-spoke when explaining POMC neurons. I said “P-M-O-C” but should have said “POMC”. Apologies. The name I gave for what POMC is, however, was correct: "proopiomelanocortin". Thank you to our sponsors AG1 (Athletic Greens): https://athleticgreens.com/huberman Supplements from Thorne https://www.thorne.com/u/huberman Timestamps (00:00:00) Introduction (00:06:59) Hunger: Neural & Hormonal Control (00:08:32) Chewing & Hunger (00:11:05) Siamese Rats Reveal the Importance of Hormones In Hunger (00:13:08) Neurons That Powerfully Control Hunger by Releasing Specific Hormones (00:16:28) Anorexia & Extreme Overeating (00:16:57) Why Sunlight Suppresses Hunger: a-Melanocyte Stimulating Hormone (a -MSH) (00:20:03) Blue-blockers, Injecting a-MSH: Instant Tan & Priapism (00:22:30) Ghrelin: A Hormone That Determines When You Get Hungry, & That You Can Control (00:24:40) Meal Timing Determines Hunger, Not the Other Way Around (00:27:20) Satchin Panda, Circadian Eating & Intermittent(ish) Fasting (00:29:35) How To Rationally Adjust Meal Schedules: The 45min Per Day Rule (00:33:02) CCK (Cholecystokinin): A Hormone In Your Gut That Says “No Mas!” (00:34:55) Eating For Amino Acids, Fatty Acids & Sugar (00:39:05) L-Glutamine: Stimulates the Immune System & Reduces Sugar Cravings (00:43:42) Things To Avoid: Emulsifiers; Alter Gut Mucosa & Nutrient Sensing (00:49:32) “A Calorie Is NOT A Calorie” After All (00:52:36) Insulin & Glucose: Hyperglycemia, Euglycemia, & Hypogylcemia (00:56:12) The Order Your Eat Foods Matters: Managing Your Blood Glucose & Glucagon (01:02:40) Movement, Exercise & GLUT-4 (01:04:50) Why Sugar Stimulates Your Appetite (01:05:40) Keeping Blood Sugar Stable With Specific Exercises, The Power Of Insulin Sensitivity (01:07:55) High-Intensity Exercise, Glycogen & Metabolism (01:10:28) Cholesterol, HDL, LDL & Glucose Management: Ovaries, Testes, Liver, Adrenals (01:15:00) Prescription Compounds That Reduce Blood Glucose: Metformin (01:16:45) Berberine: A Potent Glucose Buffer That Also Adjusts Cholesterol Levels, Canker Sores (01:22:05) Chromium, L-Carnitine, Ginseng, Caffeine, Magnesium, Stevia, Vitamin B3, & Zinc (01:24:34) Acids: Vinegar, Lemons & Limes & False Alkalinity (01:26:40) Ketogenic Diets (In Brief): Effects On Blood Glucose, Thyroid Hormones (01:28:10) Diabetes, Filtering Blood, Sweet Urine (01:31:08) The Power of GLP-1 & Yerba Mate For Controlling Appetite, Electrolytes (01:35:19) Summary & Notes About Thyroid, Estrogen, Testosterone (01:37:20) Zero Cost & Sponsor-Based Ways To Support The Huberman Lab Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

In this episode, I discuss testosterone and estrogen hormones and how they impact the brain, body, and behavior after puberty. I also discuss how various behaviors such as exercise (resistance and endurance training) and sex or observing sex impact these hormones and their levels. I ask: "what specifically is it about such activities that impact testosterone and estrogen?"; the resounding theme is that when our nervous system is activated in particular ways, it drives our endocrine system and vascular system to activate or repress certain hormone networks in predictable ways. I also discuss peer-reviewed studies and protocols addressing (at a mechanistic level) how light, cold and heat, and respiration (breathing) can positively or negatively impact testosterone and estrogen. We discuss specific supplements and compounds that peer-reviewed studies illustrate can adjust testosterone and estrogen levels by changing their binding to other proteins, raising them directly, or changing other hormones released from the brain and pituitary. I discuss optimization in the normal reference ranges for these hormones, and I discuss pheromones, apnea, menstrual cycles, menopause and andropause. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://www.wakingup.com/huberman Timestamps 00:00:00 Introduction   00:00:26 Sponsors: AG1, LMNT & Waking Up   00:05:50 Hormone Optimization   00:07:00 Salutogenesis: A Powerful Way to Conceptualize Health   00:10:03 Estrogen and Testosterone: Sources, Levels and Ratios   00:15:46 The Power of Competition, Plus: Anxiety, Persistence and Dopamine   00:20:58 Testosterone and Libido Pre-Ovulation   00:21:48 Estrogen and Sexual Receptivity; Libido In Males   00:23:10 How Sex Behavior Impacts Testosterone: Observing vs. Actual vs. Abstinence   00:26:46 Testosterone and Prolactin: Sex Seeking vs. Pair Bonding   00:27:30 DHEA (dehydroepiandrosterone): Effects on Levels/Ratios   00:28:45 Behaviors That Decrease Testosterone (and Cortisol): Parenting and Prolactin   00:31:24 How Illness Impacts Testosterone and Estrogen: Cytokines, e.g., IL-6   00:33:20 How Exactly Do Behaviors Change Hormones?   00:34:18 Pheromones: Miscarriage, Menstrual Cycles, Puberty Onset, and Mate Recognition   00:43:33 Apnea: A Powerful Bi-Directional Influence On Estrogen and Testosterone   00:47:44 Mouth vs. Nose Breathing and Hormone Levels: Effects Via Sleep and Direct Effects   00:51:11 How Sleep Adjusts Cortisol/Testosterone and Cortisol/Estrogen Ratios   00:53:49 O2:CO2 Ratios, Nasal Breathing During Exercise   00:56:30 Light Viewing Patterns and Hormones: Dopamine, GnRH   00:57:44 Spring Fever: Tyrosinase, Hair Color, Mating Frequency   01:04:39 Specificity of Hormone Effects   01:06:03 Temperature: Cold and Hot Gonads   01:14:10 How To Exercise: Types, Effort Level, Sequencing   01:21:42 Cardio/Endurance vs. Resistance Training (First or Last?) Yes, It Matters   01:24:41 Estrogen and Menopause: Compounds That May Ameliorate/Reverse Symptoms   01:33:18 Nutrients That Optimize The Foundation For Hormones   01:36:00 Opioids as Severe Hormone Disruptors   01:37:23 Testes, Antlers and Ovaries   01:38:50 Creatine and Increasing DHT (Dihydrotestosterone)   01:40:14 Free and Bound Testosterone: SHBG (Sex Hormone Binding Globulin), Tongat Ali   01:43:23 Nettles, Prostate, Boron, and Blood Brain Barrier   01:45:27 Hormone Related Cancers: Sometimes Reducing Estrogen and Testosterone Is Optimal   01:47:43 Ecdysteroids: Mimic Mammalian Hormones   01:51:50 Optimizing Brain Hormones: Chorionic Gonadotropin, Fadogia Agrestis   01:57:18 Additional Compounds, Liver Toxicity, Overall Milieu   01:59:17 Summary: And Note About Additional Related Topic Coverage Coming   Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices