Huberman Lab

Podbit · Huberman Lab

Essentials: Improve Flexibility with Research-Supported Stretching Protocols

Explore episode Jun 18, 2026
Science
Von Economo Neurons: The Hidden Brain Cells That Let You Override Pain

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

Deep in the posterior insula sit von Economo neurons — large, rare cells apparently unique to humans that wire together body awareness, pain signals, and motivational drive. They can shift the nervous system from sympathetic alertness into parasympathetic calm, letting you literally override the stretch reflex through conscious decision. This is the actual neuroscience behind 'relax into the stretch.'

Where this was said

Golgi Tendon Organs, Load Sensing

At 4:30 · chapter starts 3:16

At the junction between muscle and tendon sit Golgi tendon organs — sensory neurons that constantly measure the mechanical load on a given muscle. When that load crosses a critical threshold, these neurons fire signals into the spinal cord that don't just warn the system — they actively inhibit motor neurons, making it physiologically impossible for the muscle to contract further. Huberman illustrates this with a vivid scenario: imagine trying to lift a weight so heavy that completing the movement would tear the muscle or rip the tendon from bone. The GTO system kicks in before catastrophe strikes, silencing the motor command. This mechanism is entirely involuntary and operates below the level of conscious thought, making it one of the body's most fundamental protective systems. Huberman notes that this is one of just two neural mechanisms the listener needs to hold in mind — the other being the spindle system described in the previous chapter.

Similar podbits

Science
The Door-Keeping Experiment: Our Irrational Addiction to Optionality

Finding Your Life Path, Solved · Sep 2, 2026 Science

In Dan Ariely's door experiment, participants sacrificed the highest-reward door — repeatedly — just to avoid seeing other doors disappear. Even when researchers trained them to use the best door, they kept wasting clicks to maintain options. This is the bias that runs our lives: we'll take a worse outcome to preserve the feeling of optionality.

Science
Dan Gilbert's Psychological Immune System: Why Your Brain Justifies Every Decision

Finding Your Life Path, Solved · Sep 2, 2026 Science

Dan Gilbert discovered that the brain has a 'psychological immune system' — it misremembers, reframes, and rationalizes to keep you satisfied with whatever you chose. The fear before commitment is all about potential regret. But after committing, your brain quietly starts justifying the choice — and the more irreversible the decision, the stronger the effect.

Science
The Placebo Effect Is Not Fake — It Just Belongs to the Story, Not the Drug

#403 ‒ Peptides: separating scientific promise from marketi… · Aug 10, 2026 Science

Peptides come loaded with a powerful narrative: regenerative, subcutaneous, targeted, cutting-edge. That narrative can genuinely move outcomes, especially for pain, energy, and recovery. The RCT's job is to quantify how much additional benefit comes from the molecule itself — above and beyond the compelling story surrounding it.