Science + Longevity podcast summaries

Jared Diamond on Leadership: Why Charisma Isn't Required

Charisma is optional for great leadership, biologist and historian Jared Diamond argues, pointing to the uncharismatic dictators Stalin and Pinochet as proof (00:26). Diamond, 89, applies a 'natural experiment' method from biology to politics, religion, business, and sports, showing only 2 of 22 modern political leaders stepped down voluntarily and that coaches and CEOs get too much credit or blame for outcomes that are mostly random (95:37).

October 19, 2026 · 6 min read

BETTER! with Dr. Stephanie Estima

How to Build Glutes Without Growing Legs

Hip dips are permanent anatomy, not a fitness failure, says glute researcher and hip thrust inventor Bret Contreras. He explains why horizontal moves like hip thrusts and kickbacks are gentler on joints than squats, how women recover faster than men, and how a five-month training rotation builds glutes while sparing the legs.

October 19, 2026 · 6 min read

The Peter Attia Drive

Siddhartha Mukherjee on Cancer's New Science

Oncologist Siddhartha Mukherjee tells Peter Attia that cancer's old "bad luck" story is being replaced by a more precise one: inflammation acts as the trigger that wakes dormant, mutation-carrying "sleeper cells" into tumors, which reframes prevention, treatment, and how we think about aging itself.

October 19, 2026 · 6 min read

You Are Not Broken

Building Muscle in Midlife: Hormones Explained

Heavy resistance training, not cardio, rebuilds muscle lost in perimenopause, say physicians Kelly Casperson and Rebeccah Hertel. They cite data showing testosterone cuts hip fracture risk in women by about 50%, estrogen patches can help bone density well past age 60, and widely used lab ranges and 1990s-era studies understate hormone therapy's safety.

October 18, 2026 · 7 min read

The Dr. Gabrielle Lyon Show

How Much Protein Do You Really Need?

The standard protein recommendation of 0.8 grams per kilogram prevents deficiency, not optimal health. Researchers at Protein Summit 3.0 debated a higher range, 1.1 to 1.6 grams per kilogram, for better metabolic outcomes, noting needs shift by age, activity, and health status (07:15).

October 15, 2026 · 6 min read

Huberman Lab

Neuralink Trials for Quadriplegia: What Comes First

Neuralink's head neurosurgeon Matt MacDougall explains that the implant's first job is letting quadriplegic patients move a cursor and type by thought alone, not reconnect limbs. He also covers the robotic surgery that makes this possible, the safety case made in pigs and monkeys, and his own subdermal RFID chip.

October 15, 2026 · 7 min read

Perform with Dr. Andy Galpin

Testosterone, Age, and Metabolic Health Explained

Testosterone does not fall because someone gets older; Dr. Andy Galpin says the data show obesity and metabolic dysfunction, not age itself, drive almost all of the decline. Men who hit five basic metabolic health markers have under a 1% chance of low testosterone (34:38), while obesity alone raises the risk roughly 7.5-fold (33:18).

October 14, 2026 · 7 min read

The Dr. Gabrielle Lyon Show

Is Anesthesia Safe? What Really Happens in the OR

Anesthesiologist Dr. Tiffany Moon says healthy patients face under 0.1% mortality risk from elective surgery, lower than the odds of a car crash (25:28, 25:56). The bigger variables are body fat, which changes how drugs distribute, and vital-sign stability during the procedure, not whether someone wakes up at all (05:09, 24:10).

October 13, 2026 · 8 min read

unPAUSED with Dr. Mary Claire Haver

Mark Cuban on the Estrogen Patch Shortage

Estrogen patch prescriptions have nearly tripled in two years, while specialty manufacturing requirements keep supply from catching up. Entrepreneur Mark Cuban explains how his Cost Plus Drugs company sells at a flat 15% markup, and how pharmacy benefit managers can push a brand drug's price from $300 to $600 through rebate demands.

October 13, 2026 · 6 min read

Sigma Nutrition

How to Interpret Testosterone Test Results

A single testosterone number rarely settles the question of whether treatment will help. Physician Austin Baraki says free testosterone, symptom type, and the underlying cause of a low reading (often obesity, poor sleep, or alcohol) matter more than one blood draw, and a 4 to 6 month trial beats a lifelong commitment.

October 13, 2026 · 6 min read

Huberman Lab

How Diet Affects Memory and the Hippocampus

USC neuroscientist Scott Kanoski says the hippocampus, the brain's memory hub, tracks recent meals via the vagus nerve to judge hunger and fullness. Sugar, heat-processed foods, and artificial sweeteners early in life can impair that memory system and its gut bacteria, while exercise and simple recall of a recent meal can help restore or harness it.

October 12, 2026 · 6 min read

BETTER! with Dr. Stephanie Estima

Muscle Power vs Strength for Longevity

Psychophysiologist Paul Taylor says muscle power, not size or strength, best predicts how long people live. He tells Dr. Stephanie Estima that myokines, signaling molecules released by contracting muscle, act like an internal pharmacy, and he gives dosing-style guidance on power training, protein, omega-3, and cold plunge limits.

October 12, 2026 · 7 min read

The Peter Attia Drive

Why Peter Attia Changed His Mind on Keto

Peter Attia now says keto works by curbing energy intake, not lowering insulin, while he still requires 1.4 g/kg of protein (09:42, 11:44). He also walks back his extended fasting protocol, once seven to ten days quarterly, after weighing autophagy evidence against the practical cost (12:36, 15:09).

October 12, 2026 · 6 min read

You Are Not Broken

Menopause Advocacy and Policy Reform Guide

Lawyer Jennifer Weiss-Wolf compares menopause advocacy to a choose-your-own-adventure book: everyone brings different skills. She traces today's momentum back to 1992's 'Year of the Woman' and the 2002 Women's Health Initiative backlash, and warns that US law still has no explicit protection against menopause discrimination at work (36:59), so she tells people to write to legislators and file FDA comments instead of venting online (17:49).

October 11, 2026 · 6 min read

unPAUSED with Dr. Mary Claire Haver

Postpartum OCD vs Psychosis: Key Differences

Postpartum OCD causes unwanted, intrusive thoughts about harming a baby, not a desire to act. CNN anchor Pamela Brown and OB-GYN Dr. Mary Claire Haver distinguish it from postpartum psychosis, a break from reality involving voices (42:59), and cover GLP-1 fertility effects, testosterone therapy, and vaginal estrogen's role preventing UTIs (35:52).

October 9, 2026 · 7 min read

Barbell Medicine

How Much Lifting Is Enough for Health?

Public health guidelines recommend lifting twice a week, but the study behind that number found three days worked better. Jordan Feigenbaum argues lifting doesn't hurt the heart, carries lower injury risk than running, and shows no real ceiling for strength, bone density, or metabolic benefits, so most people should train roughly double the current guideline.

October 8, 2026 · 6 min read

The Dr. Gabrielle Lyon Show

Hormones and Attraction: What the Science Shows

Hormones shape attraction traits mostly during puberty, not day to day. A masculine face doesn't reveal current testosterone, and the ovulatory-shift theory, that women prefer masculine men mainly near ovulation, lacks support. Perceived physical strength explains 70% of women's attractiveness ratings for men's bodies, making muscle, unlike facial bone structure, the one hormone-built trait people can still train.

October 8, 2026 · 7 min read

Huberman Lab

Elissa Epel's Guide to Stress and Resilience

Psychologist Elissa Epel says stress is simply when demands exceed our resources, and most modern stress comes from our own thoughts. She shows how a challenge mindset, radical acceptance, and small daily practices like 'dropping the rope' change inflammation, telomere length, and mitochondrial energy output measurably.

October 8, 2026 · 6 min read

FoundMyFitness

Blueberries for Brain and Vascular Health

Blueberries measurably improve artery function and may slow cognitive aging by roughly 1.5 to 2.5 years, with benefits appearing most reliably at about one cup a day. Effects look strongest for vascular health, more mixed for blood sugar, and vulnerable to a surprising kitchen variable: blending with ripe banana.

October 1, 2026 · 6 min read

The Dr. Gabrielle Lyon Show

JJ Thomas's Primal Physical Therapy Guide

Physical therapist JJ Thomas argues that pain is an alarm pointing to a movement problem elsewhere in the body, not proof that the hurting spot is broken. She treats patients with seven foundational movements (squat, hinge, push, pull, carry, reach, rotate) and dry needling at sites far from the pain, arguing most overuse injuries are really underuse injuries of neighboring muscles.

October 6, 2026 · 6 min read

unPAUSED with Dr. Mary Claire Haver

How Menopause Affects Gut Health and Bloating

Menopause changes gut health because falling estrogen slows motility, raises pain sensitivity, and shifts the microbiome's estrobolome. Harvard gastroenterologist Trisha Pasricha explains why bloating, IBS, and fecal incontinence rise after menopause, and lays out fiber, screening, and bidet protocols that actually help.

October 6, 2026 · 7 min read

Sigma Nutrition

Body Composition Testing: DEXA vs BIA Accuracy

No device on the market actually measures body fat; every scale, scan, or pod only estimates it from indirect signals, and a method proven accurate for a group can still mislead an individual user. Texas Tech professor Grant Tinsley explains why standardizing tests, tracking one device over time, and treating small percentage swings as noise matter more than any single number (12:49, 38:24).

October 6, 2026 · 7 min read

Huberman Lab

Beth Shapiro on De-Extinction and Gene Editing

Evolutionary biologist Beth Shapiro explains why species are human categories and why dinosaur DNA cannot survive 66 million years. She describes how Colossal Biosciences engineered a dire wolf with 20 gene edits to a gray wolf genome, revived black-footed ferret genetics through cloning, and weighed the ethics of editing human embryos.

October 5, 2026 · 7 min read

BETTER! with Dr. Stephanie Estima

ADHD in Perimenopause: Why Symptoms Intensify

Dr. Jolene Brighten says ADHD in women often surfaces in perimenopause, when falling estrogen stops masking lifelong symptoms. Estrogen supports dopamine and acetylcholine, so its decline during the luteal phase and perimenopause worsens executive function, mood, and focus, explaining why many women are diagnosed only in their 30s and 40s.

October 5, 2026 · 6 min read

The Peter Attia Drive

Preeclampsia and Long-Term Heart Risk Explained

Pregnancy stresses the heart, kidneys, and metabolism so hard that its complications predict a woman's cardiovascular and diabetes risk decades later. Maternal-fetal medicine specialist Kathryn Gray explains how plasma volume surges 50%, how preeclampsia's placental biology works, and why half of gestational diabetes cases become type 2 diabetes.

October 5, 2026 · 7 min read

unPAUSED with Dr. Mary Claire Haver

Menopause Skin Changes: What Actually Helps

Dermatologist Erica Kelly tells Dr. Mary Claire Haver that menopausal skin needs lighter Botox doses, daily sunscreen, and realistic expectations for collagen and hair treatments. Hormone therapy may preserve skin firmness for decades, oral minoxidil treats hair loss but causes a two-month shed, and vaginal moisturizers differ from lubricants.

October 2, 2026 · 6 min read

Barbell Medicine

Why Lifting Heavy Was Called Dangerous

In 1985 a panel of obstetricians banned pregnant women from raising their heart rate past 140 beats per minute, a number invented by consensus, not data (00:01). The same pattern, rules built on vibes rather than evidence, shaped a century of bans on heavy lifting for women, children, and anyone squatting below parallel, until later studies quietly reversed nearly all of them.

October 2, 2026 · 7 min read

The Dr. Gabrielle Lyon Show

Building Muscle in Menopause: What Studies Show

No, it is not too late: postmenopausal women gained up to eight pounds of muscle in 12 weeks of structured lifting. Hormone therapy does not build muscle on its own, but it can amplify gains from resistance training, and the protein target for bone and muscle protection is roughly double the standard RDA.

October 1, 2026 · 7 min read

Huberman Lab

Huberman's Science-Based Focus Tools

Stanford neuroscientist Andrew Huberman lays out a stacked protocol for training focus, from sleep and caffeine to meditation and supplements. He covers 90-minute ultradian work blocks, a 13-minute daily breath meditation, cold exposure for epinephrine, and specific doses for creatine, alpha-GPC, and L-tyrosine, recommending behavioral tools before any supplement or drug.

October 1, 2026 · 6 min read

Perform with Dr. Andy Galpin

Testosterone Explained: Low T, TRT, and Muscle Myths

Low testosterone is usually a symptom, not the disease itself: obesity, poor sleep, extreme dieting, or a blocked vein cause most cases, not age alone (76:08, 95:06). Two PhDs argue for finding the cause before reaching for a syringe, and for treating any hormone therapy with real informed consent.

September 30, 2026 · 7 min read

The Dr. Gabrielle Lyon Show

Surgical Prehabilitation Protocol Guide

Prehabilitation, the practice of preparing the body before surgery instead of only recovering after it, can measurably change outcomes. Duke University surgeon Rebecca Knackstedt recommends 2 grams of protein per kilogram of body weight daily (34:26), a vitamin D level near 70 ng/mL (25:47), targeted muscle training, and five days of immunonutrition before major operations (69:01) to cut complications and speed healing.

September 29, 2026 · 7 min read

unPAUSED with Dr. Mary Claire Haver

Menopause Skin Changes: Causes and Fixes

Menopause triggers a 30% collagen loss in skin within five years, driven by falling estrogen and steady testosterone levels. Dermatologist Erica Kelly explains the barrier breakdown behind dryness and jawline acne, and recommends sunscreen and retinoids as the best-evidenced treatments, with topical estriol and spironolactone for targeted fixes.

September 29, 2026 · 7 min read

BETTER! with Dr. Stephanie Estima

Strength Training for Hypermobility, Done Safely

Hypermobile joints move past normal range because ligaments are too loose, so strength training, not stretching, is the primary fix. Dr. Stephanie Estima recommends training within 80% of available range of motion, using slow eccentrics and isometric holds, plus adequate protein and vitamin C to support connective tissue repair.

September 28, 2026 · 8 min read

The Peter Attia Drive

Lloyd Klickstein on How New Drugs Get Made

Physician-scientist Lloyd Klickstein maps the full arc of drug development, from spotting an unmet need to FDA approval, using the muscle drug bimagrumab as his case study. Paired with semaglutide, it cut body fat by 45.7% over 72 weeks (125:28), rivaling bariatric surgery, while exposing the economics of patents, manufacturing, and phase one risk.

September 28, 2026 · 7 min read

The Dr. Gabrielle Lyon Show

ED as an Early Predictor of Heart Attack Risk

Erectile dysfunction predicts a future heart attack better than chest pain does, especially in younger men (11:11). Urologist Tobias Kohler describes two cheap early-warning tests, a coronary calcium scan and a Mayo Clinic ceramide blood test, plus the cardiac damage caused by high-dose testosterone abuse (12:49, 44:55).

September 22, 2026 · 6 min read

You Are Not Broken

Vaginal Estrogen for UTI Prevention

Urologist Dr. Kelly Casperson explains that genitourinary syndrome of menopause (GSM) affects 50% to 90% of postmenopausal women. Vaginal estrogen cuts recurrent urinary tract infections by half, lowers hospitalization and death risk, and is safe for most breast cancer survivors, yet only 9% of women diagnosed with GSM get a prescription.

September 20, 2026 · 7 min read

BETTER! with Dr. Stephanie Estima

Physiology of Grief and Heart Attack Risk

Grief is not just an emotion, it is a measurable physiological event: a 21-times spike in heart attack risk in the first 24 hours after a loss, elevated cortisol for months, and a brain that keeps treating the dead as still out there somewhere.

September 14, 2026 · 7 min read

unPAUSED with Dr. Mary Claire Haver

Gabrielle Lyon: Muscle Is the Longevity Organ

Dr. Gabrielle Lyon argues that skeletal muscle, not body fat, is the organ that determines how well women age. She explains that muscle drives glucose disposal, releases hormone-like myokines, and needs at least 100 grams of daily protein plus resistance training to stay healthy after midlife.

September 22, 2026 · 6 min read

unPAUSED with Dr. Mary Claire Haver

Protein Needs for Muscle in Menopause: Dr. Lyon's Guide

Dr. Gabrielle Lyon says women need 30 to 50 grams of protein in their first meal after an overnight fast to switch on muscle building. She explains why aging muscle grows resistant to protein and exercise, why resistance training beats hormone therapy for long-term independence, and why suppressing mTOR is the wrong longevity strategy.

September 25, 2026 · 7 min read

The Dr. Gabrielle Lyon Show

Menopause, Muscle Loss, and Insulin Resistance

Menopause changes the body mainly by shrinking muscle, not just by crashing hormones. Dr. Gabrielle Lyon argues that muscle loss, which starts speeding up about two years before a woman's final period, drives the insulin resistance, bone loss, and fat gain often blamed on menopause alone, and that resistance training and higher protein intake are the direct countermeasures.

September 24, 2026 · 7 min read

BETTER! with Dr. Stephanie Estima

Katy Bowman: Movement as Nutrition, Not Exercise

Biomechanist Katy Bowman argues movement is a nutrient the body requires daily, not a scheduled workout, and that modern convenience saves movement rather than time. She maps a movement pyramid from floor-sitting to sprinting, links bone strength to changing direction, and traces midlife foot pain to decades of repeated gait patterns.

September 21, 2026 · 6 min read

Barbell Medicine

Is Training Safe in Wildfire Smoke?

Exercise still protects health during wildfire smoke, and lifting is safer than cardio because it barely raises breathing rate. Training right at failure isn't required for muscle growth either, since easier sets and even indirect fractional sets still add measurable stimulus, so individual response matters more than hitting an exact rep-in-reserve number.

September 24, 2026 · 6 min read

Huberman Lab

Andy Galpin's Strength and Hypertrophy Protocols

Strength and muscle size are not the same adaptation: size can grow without strength, and power fades fastest with age. Kinesiologist Andy Galpin lays out concrete numbers, a 3-to-5 strength template, and a 10-to-25 weekly set range for hypertrophy that adapts to real-life chaos (11:30, 32:15).

September 24, 2026 · 7 min read

Sigma Nutrition

Liking vs Wanting in Food Reward Psychology

Food reward splits into two separate systems: liking, the pleasure a food delivers, and wanting, the pull to eat it, which often runs on autopilot. Nutrition composition alone explains only 20% of why a food is liked (21:59); adding sensory perception explains another 40-60% (22:35), while ultra-processed classification barely moves the needle.

September 22, 2026 · 6 min read

The Peter Attia Drive

Peter Attia on Thyroid Health: Diagnosis and Risks

Peter Attia says thyroid problems are hard to diagnose because T4, the hormone the gland secretes, is inactive until tissues convert it locally into T3. TSH only shows how hard the gland is being told to work, not what's happening inside organs, so both under-treating real disease and over-treating borderline labs, common in functional medicine, cause real harm.

September 21, 2026 · 7 min read

Barbell Medicine

Do You Need a Calorie Surplus to Build Muscle?

No: men above roughly 20% body fat can build muscle in a modest calorie deficit by spending stored fat as fuel. Sports scientist Eric Helms says below about 12% body fat the reverse happens, so a small surplus helps; in between, calorie balance barely matters if training and protein are dialed in.

September 17, 2026 · 7 min read

Huberman Lab

Andy Galpin's 9 Fitness Benchmarks to Self-Test

Exercise scientist Andy Galpin breaks fitness into nine measurable adaptations, from movement skill to long-duration endurance, each with a home-testable benchmark. The takeaway: a broad jump, a dead hang, and a 12-minute run tell you more about your health trajectory than a single cardio number ever could (02:32).

September 17, 2026 · 7 min read

Perform with Dr. Andy Galpin

Dr. John Rusin's 6-Phase Dynamic Warmup Explained

Physical therapist and performance coach Dr. John Rusin lays out a diagnostic and warmup system for training around chronic pain without surgery or years off. His six-phase, 10 to 12 minute daily sequence (24:02) turns soft tissue work, stretching, and activation drills into deliberate, measurable steps rather than vague pre-workout ritual.

September 16, 2026 · 7 min read

Sigma Nutrition

BPC-157 Safety and Clinical Evidence Explained

BPC-157 and similar peptide medications have almost no published human safety data, and most are sold as unregulated 'research chemicals.' Dr. Jordan Feigenbaum, founder of Barbell Medicine, explains the evidence gap, sourcing risks between research-grade chemicals and compounding pharmacies, and why pharmaceutical companies abandoned these compounds despite viral anecdotal enthusiasm.

September 15, 2026 · 7 min read

Huberman Lab

The Three Macronutrients of True Happiness

Arthur Brooks argues happiness runs on three macronutrients: enjoyment, satisfaction, and meaning. Chasing money, power, pleasure, or honor as ends in themselves blocks all three (67:59), while struggle, leisure used on purpose, and naming one's true idol are what convert pleasure into lasting well-being.

September 14, 2026 · 7 min read

The Peter Attia Drive

Obeticholic Acid for Heart Disease and Alzheimer's

Cardiologist Michael Davidson argues heart disease and Alzheimer's share a root cause: cholesterol mismanaged over decades, not years. His new CETP-inhibitor drug, obeticholic acid, cuts LDL by up to 50%, raises HDL 150%, and shows early signals of slowing Alzheimer's biomarkers in ApoE4 carriers (68:43).

September 14, 2026 · 7 min read

Huberman Lab

Oded Rechavi: How Memories Pass Across Generations

Neurobiologist Oded Rechavi explains why eye color is inherited but a parent's knowledge is not, then shows the exception: in roundworms, small RNA molecules carry viral immunity and even brain-driven behavior across three generations, hinting at a physical, if limited, channel for inherited experience.

September 10, 2026 · 8 min read

Sigma Nutrition

Health Benefits of Fish vs Plant Protein

Fish shows up in nearly every national dietary guideline at roughly two servings a week, and the evidence behind that number holds up, but newer research shows the benefit depends heavily on what fish replaces and which population is eating it, and fish itself is not biologically required for good health.

September 8, 2026 · 7 min read

Huberman Lab

How Mitochondria Control Metabolism: Jared Rutter

Biochemist Jared Rutter explains that every cell's mitochondria choose between burning fuel for energy or building biomass, and that choice can go wrong. When heart cells lose the mitochondrial pyruvate carrier, they build instead of burn, grow enlarged, and fail; cancer cells make the same choice on purpose, fueling uncontrolled growth.

September 7, 2026 · 6 min read

The Peter Attia Drive

Peter Attia's Blood Pressure Protocol Explained

High blood pressure above 120/80 doubles cardiovascular death risk with each 20 mmHg rise in systolic pressure, physician Peter Attia explains. He breaks down what the SPRINT and STEP trials proved about aggressive treatment, how to measure blood pressure correctly at home, and why weight loss, exercise, sleep, and sodium timing can lower it as much as medication.

September 7, 2026 · 7 min read

Barbell Medicine

Is Obesity Really a Muscle Disease?

Obesity is not simply a muscle shortage: lean mass on a DEXA scan predicts no falls, fractures, or death in 18,800 older adults (21:44). Barbell Medicine host Dr. Jordan Feigenbaum argues the real damage comes from where fat lands, what molecular form it takes, and how fast it moves, drawing on GLUT4 transporter mechanics and GLP-1 trial data.

September 4, 2026 · 6 min read

Huberman Lab

Joe Liemandt on How Alpha School Speeds Up Learning

Alpha School principal Joe Liemandt says AI-tutored, mastery-based lessons let students learn a year's core material in 20 to 30 hours, not 180 school days. Alpha's K-12 students test in the top 1% nationally and average a 1,530 SAT, spending just two hours a day on academics before building real businesses and practicing life skills.

August 31, 2026 · 7 min read

Perform with Dr. Andy Galpin

Dan Garner on Blood Work and Fitness Constraints

Dan Garner explains how blood work reveals the biological constraints, like low testosterone or vitamin D, that block fitness progress, and why lab noise often makes a rising or falling number meaningless. He also covers hypertrophy training splits, diet breaks, and why peptides like SS-31 sound impressive but lack real performance data.

August 19, 2026 · 7 min read

The Peter Attia Drive

Peter Attia on Liver Health and Metabolic Disease

Metabolic fatty liver disease now affects over 38% of adults worldwide, and physician Peter Attia frames the liver as a mirror of whole-body metabolic health. The disease moves through four stages, from metabolic stress to steatosis, steatohepatitis, and fibrosis, and the first three stages are largely reversible through weight loss, muscle gain, and cutting alcohol and liquid sugar calories.

August 24, 2026 · 7 min read

Sigma Nutrition

How Wellness Culture Commodifies Science

Exercise physiologist Nick Tiller argues that wellness marketing borrows the language of science while discarding its standards, turning genuine findings, like vitamin D's role in immunity, into inflated, unverifiable claims. He traces the damage upstream too: low statistical power, publication bias, and admitted data manipulation in exercise science feed the misinformation industry that influencers later sell.

September 1, 2026 · 7 min read

FoundMyFitness

Richard Davidson's Meditation Neuroscience

Neuroscientist Richard Davidson says wellbeing is a trainable skill, not a fixed trait. He organizes this into four pillars (awareness, connection, insight, purpose) and shows five minutes of daily meditation for 28 days lowers IL-6, an inflammation marker, and shifts gut microbiome pathways; purpose best predicts longevity after age 70.

August 24, 2026 · 7 min read

FoundMyFitness

Derya Unutmaz: How AI Could Extend Human Lifespan

Immunologist Derya Unutmaz says AI could help medicine reach longevity escape velocity within 8 to 10 years (09:13), the point where treatments add more than a year of life per year. He describes reasoning models that outperform average doctors at diagnosis (49:20), predict disease years early (79:14), and could build personalized digital twins for testing treatments before humans take them.

July 19, 2026 · 8 min read

Sigma Nutrition

Effective Athlete Nutrition Support, Explained

Performance nutritionist Gemma McGuinness argues that nutrition works best as a long-term investment in health, not a lever pulled only for performance. She explains how flexible standards, if-then planning, and psychological safety keep athletes consistent through injury, career transition, and pressure, with energy levels as the clearest sign nutrition is working.

August 25, 2026 · 7 min read

Barbell Medicine

Personal Fat Threshold Theory Explained

The personal fat threshold theory says obesity begins when a person's fat cells run out of storage room, not at any fixed weight or BMI. Once storage fills up, fatty acids leak into the liver, muscle, and pancreas, causing insulin resistance. Removing fat surgically does not reverse this; restoring storage capacity does.

August 20, 2026 · 8 min read

Huberman Lab

Gina Poe on How Sleep Builds Memory and Heals

Sleep cycles every 90 minutes, and early cycles release growth hormone and clean the brain, while later ones handle emotion and creativity. Neurobiologist Gina Poe explains how REM sleep silences the stress chemical norepinephrine, letting the brain separate emotion from memory, and why consistent bedtimes protect this whole system.

September 3, 2026 · 7 min read

Perform with Dr. Andy Galpin

Andy Galpin's Nutrition and Hydration Fundamentals

Andy Galpin argues nutrition science mostly agrees: eat whole foods, manage calories, hit protein and fiber targets, and hydrate by formula. The rest, like meal timing or keto versus low-fat, is personal preference layered on the same ten to fifteen fundamentals (03:50, 11:48, 32:37).

August 5, 2026 · 6 min read

Barbell Medicine

Who Needs Testosterone Replacement Therapy?

Barbell Medicine physicians Jordan Feigenbaum and Austin Baraki say testosterone therapy in the US is both overprescribed and underprescribed. They point to a 45-man Sydney trial where raising testosterone from 310 to 510 ng/dL did not beat placebo, and to the Traverse trial's reassuring two-year heart-safety data.

August 27, 2026 · 8 min read

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