Podbit · Huberman Lab

Essentials: Improve Flexibility with Research-Supported Stretching Protocols

Explore episode Jun 18, 2026

Health & Fitness

The Full Protocol Summary: How to Stretch for Lasting Flexibility

Essentials: Improve Flexibility with Research-Supported Str… · Jun 18, 2026 Health & Fitness

The evidence converges on a clear protocol: static stretching wins, 30-second holds (or up to 60 seconds at low intensity), at least 5 minutes per muscle group per week, done 5–7 days a week. Go easy — 30–40% of pain threshold. Always warm up first or stretch after training. Consistent short sessions beat infrequent long ones for lasting range-of-motion gains.

Where this was said

Insula, Pain Tolerance & Yoga

At 34:55 · chapter starts 30:20

The episode's final major scientific chapter returns to the insula and delivers one of its most compelling findings. A study published in Cerebral Cortex — 'Insular Cortex Mediates Increased Pain Tolerance in Yoga Practitioners' — examined yoga practitioners spanning multiple traditions (vinyasa, ashtanga, Iyengar, sivananda) and compared them to non-practitioners on pain tolerance using thermal stimulation.^{[1]

— Andrew Huberman

"A study in Cerebral Cortex found yoga practitioners had more than double the pain tolerance of non-practitioners under thermal stimulation,…"

30:00} The result was striking: yoga practitioners had more than double the pain tolerance of controls. Brain imaging revealed the structural reason — significantly increased gray matter volume in the insular cortex. Huberman emphasises that gray matter volume increase indicates more neuronal cell bodies in those regions, implying genuine structural adaptation, not just skill acquisition. Crucially, he argues that the brain changes come not from the movements themselves but from the repeated experience of choosing to stay in discomfort at the end ranges of motion — a form of intentional, controlled overriding of the pain-avoidance instinct. This positions yoga not just as a flexibility tool but as a nervous system training protocol that reshapes pain processing in ways that generalise beyond the mat. He closes by noting the pleasing alignment between this finding and the microstretching data: you don't push to pain to get flexible, but a practice that teaches you to intelligently manage your relationship to discomfort builds a structurally different brain.

The pain tolerance of yoga practitioners was double or more to that of non-yoga practitioners. They also found significant increases in insular gray matter volume.

Andrew Huberman

Essentials: Improve Flexibility with Re…

Health & Fitness

Yoga doubles pain tolerance

Essentials: Improve Flexibility with Research-Supported Str… · Jun 18, 2026

A study in Cerebral Cortex found that yoga practitioners had double or more the pain tolerance of non-yoga practitioners when measured with thermal stimulation.

Health & Fitness

Yoga increases insular gray matter

Essentials: Improve Flexibility with Research-Supported Str… · Jun 18, 2026

Yoga practitioners show significantly increased gray matter volume in the insular cortex, the brain region associated with interoception and pain interpretation.

It appears that it's not just the performance of the yogic movements, but the overcoming or the kind of pushing into the end ranges of motion and to push through discomfort to some extent that allows yoga practitioners to build up the structure and function of these brain areas.

Andrew Huberman

Essentials: Improve Flexibility with Re…

Similar podbits

Health & Fitness

Anxiety Is the Dizziness of Freedom — Not Fear

Finding Your Life Path, Solved · Sep 2, 2026 Health & Fitness

Anxiety is not fear. Fear has an object — a wolf, a threat. Anxiety is the vertigo of standing at the edge of infinite possibility and knowing that choosing any one thing closes off all the others. Kierkegaard argued that the depth of your anxiety is proportional to the depth of your potential.

Health & Fitness

AI in Healthcare: Where It Helps and Where It Doesn't

Using AI to Increase Your Intelligence & Enrich Humanity | … · Aug 10, 2026 Health & Fitness

AI nailed Andrew Huberman's vertigo-vs-low-blood-pressure diagnosis because that pattern has been reported millions of times. But every patient's liver is different and data on liver surgeries is scarce worldwide — making solo robot surgery dangerous. The rule is simple: data abundance means AI can help; data scarcity means keep the human in the loop.

Health & Fitness

The Da Vinci Robot: Human-Machine Surgery at Its Best

Using AI to Increase Your Intelligence & Enrich Humanity | … · Aug 10, 2026 Health & Fitness

Fei-Fei Li's father had liver surgery performed by a da Vinci robot guided by a surgeon. The result: 10 times less blood loss than a typical procedure. This isn't replacement — it's the gold standard of human-machine collaboration, where the human's judgment and the robot's precision combine.

Health & Fitness

Drug Overdose Deaths Hit Lowest Level Since 2019

The Surveillance Economy, and How Capitalism Can Fix Poverty · Aug 10, 2026 Health & Fitness

US drug overdose deaths fell from 110,000 to roughly 70,000 — the biggest CDC-recorded single-year drop ever. Men's rates fell 27% in one year, and the steepest decline of all was among 15–24-year-olds, down 37%. The crisis narrative around young men needs to make room for signs of genuine progress.

Health & Fitness

David Kessler's Son Died — And Gave Birth to the Sixth Stage of Grief

The Grief Expert Who Discovered a Sixth Stage | David Kessl… · Aug 10, 2026 Health & Fitness

Kessler thought his grief expertise would protect him. It didn't. When his son David died unexpectedly, he found himself on the floor — and eventually realized that acceptance alone wasn't enough. That unmet need became the sixth stage: finding meaning.

Health & Fitness

Grief Is About Change — And Who Manages It Best Lives Best

The Grief Expert Who Discovered a Sixth Stage | David Kessl… · Aug 10, 2026 Health & Fitness

Grief isn't just death — it's any unwanted change. Kessler lectured at Coca-Cola and General Mills not because they had lots of funerals, but because change management is grief management. People who grieve well live well.

Health & Fitness

Grief Must Be Witnessed — Here's What That Actually Means

The Grief Expert Who Discovered a Sixth Stage | David Kessl… · Aug 10, 2026 Health & Fitness

Witnessing someone's grief isn't just emotional support — it's an essential act of healing. Kessler argues grief is a severance and connection heals it. But real witnessing has two steps: seeing the pain AND affirming the person's capacity to recover.

Health & Fitness

The Balloon vs. the Beach Ball: Why Stuffing Feelings Costs You Everything

The Grief Expert Who Discovered a Sixth Stage | David Kessl… · Aug 10, 2026 Health & Fitness

Avoiding grief isn't free — it's exhausting. Kessler's beach ball metaphor nails it: pushing a small balloon down is easy, but holding a massive beach ball underwater takes constant, draining energy. Unattended feelings don't disappear; they just consume you.

Health & Fitness

Your Triggers Are a Map — Not a Warning Sign

The Grief Expert Who Discovered a Sixth Stage | David Kessl… · Aug 10, 2026 Health & Fitness

Most people try to control their environment to avoid triggers. Kessler flips this entirely: triggers aren't problems to manage around — they're a detailed map to your pain and your healing. Every trigger points directly to what needs attention.