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Learn from the researchers.

Hand-picked videos and podcast episodes from scientists, physicians and evidence-focused educators, plus new uploads from the channels we follow. Their views are their own; our category guides show how each claim stacks up.

Featured videos

The Science & Health Benefits of Deliberate Heat Exposure

Andrew Huberman

Huberman explains how deliberate heat (sauna, hot baths) affects body temperature, cardiovascular health, hormones, mood and recovery, and lays out protocols for temperature, duration, timing and frequency.

Heat

Dr. Jari Laukkanen on Sauna Use for the Prevention of Cardiovascular & Alzheimer’s Disease

FoundMyFitness

Finnish cardiologist Jari Laukkanen discusses his long-running cohort of middle-aged men in which more frequent sauna sessions tracked with lower cardiovascular and all-cause mortality and less dementia.

Heat

Sauna Benefits Deep Dive and Optimal Use with Dr. Rhonda Patrick & MedCram

MedCram - Medical Lectures Explained CLEARLY

MedCram interviews Rhonda Patrick on infrared versus traditional saunas, the evidence on heart disease, dementia, depression and mortality, and practical guidance on duration, frequency and temperature.

Heat

How Sauna Use Can Impact Brain Health and Longevity | Rhonda Patrick, Ph.D.

Peter Attia MD

Clip from The Drive #369 in which Rhonda Patrick summarizes evidence linking sauna use to lower cardiovascular and dementia risk, and larger VO2 max gains when sauna is paired with endurance training.

Heat

Dr. Rhonda Patrick: Maximizing Healthspan with Exercise, Sauna, & Cold Exposure

FoundMyFitness

Recorded presentation in which Rhonda Patrick reviews the evidence for vigorous exercise, sauna and cold exposure as healthspan tools and gives protocol-level guidance for each.

Heat Cold

Using Deliberate Cold Exposure for Health and Performance | Huberman Lab

Andrew Huberman

Huberman covers how deliberate cold exposure affects mood, attention, metabolism and inflammation, with protocols on minimum exposure times, temperatures, time of day and recovery considerations.

Cold

How to Use Cold & Heat Exposure to Improve Your Health | Dr. Susanna Søberg

Andrew Huberman

Copenhagen-trained researcher Susanna Søberg discusses how cold and heat exposure influence metabolism, brown fat, insulin sensitivity and neurotransmitters, and how to structure combined protocols.

Cold Heat

Cold-Water Immersion and Cryotherapy: Neuroendocrine and Fat Browning Effects

FoundMyFitness

Short explainer on the acute responses to cold-water immersion and whole-body cryotherapy, including the norepinephrine surge, shivering types and brown-fat activation.

Cold Recovery

Cold therapy: pros, cons, and its impact on longevity [AMA 47 sneak peek]

Peter Attia MD

AMA preview in which Peter Attia reviews studies on cold-water immersion, cryotherapy and cold showers, weighing effects on muscle soreness against possible downsides and the longevity case.

Cold Recovery

Using Light (Sunlight, Blue Light & Red Light) to Optimize Health

Andrew Huberman

Huberman explains how different wavelengths affect sleep, alertness, mood and hormones, and discusses UV and red/near-infrared phototherapies for skin, pain and age-related vision decline.

Light Sleep

Dr. Glen Jeffery: Using Red Light to Improve Your Health & the Harmful Effects of LEDs

Andrew Huberman

UCL neuroscientist Glen Jeffery describes his research on red and near-infrared light and mitochondrial function, including effects on eyesight and blood glucose, and his concerns about LED-dominated lighting.

Light

Red light therapy: The science behind the hype

nature video

Nature's video team examines the claims around red and near-infrared light therapy, from neurological research to consumer face masks, and asks photobiomodulation researchers what the evidence supports.

Light

I Was Wrong About Red Light Masks & Skin Aging

Dr Brad Stanfield

Primary-care physician Brad Stanfield revisits the trial evidence on at-home red-light (LED) face masks for skin aging and explains why he changed his earlier take.

Light

Photobiomodulation Devices and Research (including Long COVID)

MedCram - Medical Lectures Explained CLEARLY

Pulmonary and sleep physician Roger Seheult reviews photobiomodulation devices and the research behind them, including studies in long COVID.

Light

The Science & Practice of Perfecting Your Sleep | Dr. Matt Walker

Andrew Huberman

UC Berkeley sleep scientist Matt Walker covers sleep stages, what happens when sleep is cut short, and how morning light, caffeine, alcohol, naps and common sleep supplements affect sleep.

Sleep

Sleep Is Your Superpower | Matt Walker | TED

TED

Matt Walker's TED talk on what sleep does for learning, memory, immunity and long-term health, ending with practical tips for sleeping better.

Sleep

#47–Matt Walker, Ph.D. on Sleep (Part 1 of 3): Dangers of poor sleep, dementia risk, mental health..

Peter Attia MD

Part 1 of Peter Attia's three-part series with Matt Walker: sleep stages and cycles, memory consolidation, mental health, and links between poor sleep and Alzheimer's risk.

Sleep

Cognitive Behavioral Therapy for Insomnia in Day-To-Day Practice: S2-Ep3

Mayo Clinic

Mayo Clinic's Mark Hansen explains the components of cognitive behavioral therapy for insomnia (stimulus control, sleep restriction, relaxation) and whether internet-delivered CBT-I works.

Sleep

Why Sleep Matters

Harvard Medical School

Public seminar in which Harvard Medical School sleep experts explain how much sleep people need, why it matters for health, and the short- and long-term costs of skimping on it.

Sleep

Is Sleep the Key to Longevity and Health?

Stanford Medicine

Stanford psychiatrist Erin Cassidy-Eagle's public lecture on sleep, aging and longevity: how sleep changes with age, why too little or too much is a problem, how light shapes circadian rhythms, and which popular trends hold up.

Sleep Light

305 ‒ Heart rate variability: measure, interpret, & utilize HRV for training and health optimization

Peter Attia MD

Conditioning coach Joel Jamieson (who developed the Morpheus HRV system) explains what heart rate variability measures, how devices capture it, and how to read HRV trends for training and health decisions.

Wearables

Enhance Your Physical & Mental Resilience (HRV, Respiratory Rate, RHR)

Andy Galpin

Andy Galpin explains how to interpret HRV, respiratory rate and resting heart rate from your own data and which interventions, from free to clinical-grade, can shift autonomic balance.

Wearables Recovery

#110 - The Science Behind Wearable Sleep Monitoring

Sleep Diplomat (Matt Walker)

Matt Walker explains how sleep trackers estimate sleep from motion and optical sensors, why they tend to overestimate sleep, and what validation studies show for Oura, Apple Watch and Whoop.

Wearables Sleep

Why I’m Obsessed with Health Wearables (and You Should Be Too) | Michael Snyder | TED

TED

Stanford geneticist Michael Snyder argues that smartwatches and glucose monitors can make medicine predictive, citing examples such as flagging illness before symptoms appear.

Wearables Metabolic

Dr. Michael Snyder on Continuous Glucose Monitoring and Deep Profiling for Personalized Medicine

FoundMyFitness

Stanford's Michael Snyder discusses 'deep profiling' with consumer wearables, continuous glucose monitoring and other data streams to catch health changes early and personalize care.

Metabolic Wearables

Continuous Glucose Monitors (CGMs) & Over-the-Counter Biosensors

Stanford Health Care

A Stanford clinical pharmacist explains how continuous glucose monitors work, how to improve accuracy and handle costs, and how new over-the-counter biosensors compare with prescription CGMs.

Metabolic Wearables

Should you wear a Continuous Glucose Monitor (CGM)?

Nutrition Made Simple!

Gil Carvalho, MD, PhD, weighs the pros and cons of CGMs for healthy people versus those with prediabetes or diabetes, drawing on a discussion with diabetes researcher Nicola Guess.

Metabolic

Understanding Glucose Spikes | ft. Mario Kratz PhD

Nutrition Made Simple!

Long-form conversation with nutrition scientist Mario Kratz on what post-meal glucose spikes are, whether they are harmful in people without diabetes, and which tactics meaningfully blunt them.

Metabolic

Transform Your Metabolic Health & Longevity by Knowing Your Unique Biology | Dr. Michael Snyder

Andrew Huberman

Michael Snyder explains why people differ in their glucose responses to foods and interventions, what kind of "glucose responder" you might be, and why responses to fiber types vary.

Metabolic

173 - AMA #26 [sneak peek]: Continuous glucose monitors, zone 2, & a framework for interventions

Peter Attia MD

AMA preview in which Peter Attia and Bob Kaplan answer follow-up questions on using continuous glucose monitors and outline a framework for judging interventions without RCT data.

Metabolic

402 ‒ NMR blood analysis: how mortality risk and more can be assessed from a single blood sample

Peter Attia MD

Biophysical chemist Jim Otvos explains NMR lipoprotein testing, why LDL particle number and apoB can add to a standard cholesterol panel, and what one blood sample can reveal about insulin resistance and mortality risk.

Metabolic

The 7 Critical Blood Tests EVERYONE Should Get

Dr Brad Stanfield

Brad Stanfield outlines the blood tests he considers most useful for prevention, such as lipoprotein(a), and the guideline evidence behind each.

Metabolic

Dr. Andy Galpin: Maximize Recovery to Achieve Fitness & Performance Goals | Huberman Lab

Andrew Huberman

Exercise physiologist Andy Galpin explains soreness and fatigue mechanisms, how to spot overtraining, and where breathwork, heat, cold, movement and pressure-based tools fit into recovery.

Recovery Cold Heat

Massage Guns: The Science of Percussive Therapy

Dr. Jacob Goodin

Exercise scientist Jacob Goodin reviews the research on percussive (massage gun) therapy, adds an athletic trainer's view on clinical use, and covers which device features matter.

Recovery

Do Massage Guns Actually Work? | Expert Physio Reviews the Evidence

Clinical Physio

A physiotherapist summarizes the trial evidence on massage guns for flexibility, performance and recovery, and flags published adverse-event reports such as rhabdomyolysis.

Recovery

Do Recovery Compression Boots Actually Work? | Expert Physio Reviews the Evidence

Clinical Physio

Evidence review of intermittent pneumatic compression ("recovery boots") for post-exercise recovery and its separate role in hospital care.

Recovery

Does Whole Body Cryotherapy Actually Work? | Expert Physio Reviews the Evidence

Clinical Physio

Evidence review of whole-body cryotherapy for injury treatment and recovery from exercise, with the cited studies listed.

Recovery Cold

Is Hydrogen Water a Scam? (Try THIS Instead for Reducing Inflammation)

FoundMyFitness Clips

Rhonda Patrick reviews human studies of hydrogen water on inflammation, oxidative stress and exercise performance, and concludes it is unlikely to be worth the cost next to better-supported options.

Recovery

Viewer Q&A: Does PEMF Actually Work to Treat Pain? (Pulsed Electromagnetic Field Therapy)

Jeffrey Peng MD

Physician Jeffrey Peng summarizes what clinical studies show about pulsed electromagnetic field (PEMF) therapy for pain.

Recovery

How to Optimize Your Water Quality & Intake for Health

Andrew Huberman

Huberman covers hydration needs and timing, claims about alkaline/"pH" and hydrogen-enriched water, how to test tap water for contaminants, and options for filtering drinking water.

Air & Water

How to Build a Corsi-Rosenthal Box

UC Davis College of Engineering

UC Davis engineering dean and indoor-air researcher Richard Corsi shows how to build the low-cost Corsi-Rosenthal box air cleaner he co-devised from a box fan and furnace filters.

Air & Water

Time to clear the air in the room... and talk about indoor air quality | Joseph Allen | TEDxBoston

TEDx Talks

Healthy-buildings researcher Joseph Allen argues that indoor air is an overlooked driver of health and that building design, operation and new low-cost monitors can improve it.

Air & Water

Environmental pollution and longevity: air pollution, noise, light, EMFs, & more (AMA 87 sneak peek)

Peter Attia MD

AMA preview in which Peter Attia weighs the evidence on air, noise and light pollution and EMFs, separating well-supported risks from weaker claims and discussing practical mitigation.

Air & Water

Forever Chemicals PFAS, PFOA, PFOS, BPA, Explained Clearly

MedCram - Medical Lectures Explained CLEARLY

Roger Seheult explains what "forever chemicals" such as PFAS, PFOA and PFOS, and the plastics chemical BPA, are and what is known about their health effects.

Air & Water

The Best Air Purifier Is A $150 DIY Option

RTINGS R&D

RTINGS' test lab compares a DIY Corsi-Rosenthal box with the 26 commercial air purifiers it has measured, explains its test method, and why the DIY unit came out on top.

Air & Water

New from the channels we follow

Recent uploads and episodes that match our topics, collected automatically.

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Podcast episodes

#080 How Heat Therapy Improves Slow Wave Sleep

FoundMyFitness · May 30, 2023

Rhonda Patrick explains how passive heating (sauna, hot baths) and vigorous exercise may deepen slow-wave sleep, including the roles of thermoregulation and immune signalling molecules.

Should I Be Signing Up for a Polar Bear Plunge?

Mayo Clinic Health Matters · September 3, 2024

Mayo Clinic sports medicine specialist Amy Beacom discusses the benefits and safety of alternating sauna and cold-water exposure, including at-home sauna tents and ice baths.

#135 - Two Windows: How Light Shapes your Sleep

The Matt Walker Podcast · May 13, 2026

Matt Walker explains why morning outdoor light anchors the circadian clock and why evening room lighting, more than phone screens, can suppress melatonin, with a no-cost light routine.

Sleep: How Do We Get More?

Science Vs · November 2, 2023

Science Vs looks at what sleep loss does to the brain and checks popular fixes, including melatonin and avoiding blue light, against the research.

How to Sleep Better

Mayo Clinic Health Matters · January 7, 2025

Timothy Morgenthaler, director of Mayo Clinic's Center for Sleep Medicine, discusses consistent sleep schedules, optimizing the sleep environment and when to see a doctor.

How to Enhance Performance With Better Sleep

Perform with Dr. Andy Galpin · July 10, 2024

Andy Galpin explains why athletes often under-sleep and how sleep duration, quality and timing affect performance and injury recovery, including sleep extension and "sleep banking".

#110 - The Science Behind Wearable Sleep Monitoring

The Matt Walker Podcast · October 13, 2025

A user's guide to sleep trackers: how motion and optical sensors estimate sleep, why devices overestimate it, what validation studies show for Oura, Apple Watch and Whoop, and the risk of "orthosomnia".

Microplastics: How Worried Should You Be?

Science Vs · October 3, 2024

Science Vs talks with reproductive biologists and a paediatric endocrinologist about microplastics and endocrine-disrupting plastic chemicals, how much we actually ingest, and practical steps to cut exposure.

How Toxic Is the Air You Breathe?

Science Vs · May 28, 2026

Revisits the case of Ella Kissi-Debrah, whose death was linked to air pollution, to explain why largely invisible fine-particle pollution harms health.

Fluoride: Is Your Water Safe?

Science Vs · April 10, 2025

Weighs the evidence on community water fluoridation, from high-dose effects to recent studies on low-dose exposure and the brain, with an epidemiologist and a community-health scientist.

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New research, recalls and price drops, once a week.

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