September 28, 2026
#153- Sleeping in an MRI Machine
Today’s episode explores how scientists study the sleeping brain inside a roaring, 111-decibel MRI scanner. Despite the extreme noise and discomfort, researchers use sleep deprivation,...
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September 21, 2026
#152 – The Brain on Music
Exploring the profound link between the brain and music, Matt begins by tracing musical expression back 40,000 years to a vulture bone flute, arguing that...
September 14, 2026
#151 – The Geography of Sleep
Matt breaks down the conflict between wall clocks and our biological rhythms, explaining how latitude and longitude dictate our rest. Latitude alters seasonal daylight and...
September 7, 2026
The Neuroscience of Déjà Vu
Matt digs into the neuroscience of déjà vu, reframing it as a sign of a healthy brain performing real-time error correction. Using a “doorman” (familiarity)...
August 31, 2026
The Night Ferryman: A Sleep Story Read by Matt Walker
Join Matt for a serene excursion across a valley lake under the cover of night. After finding a comfortable position and centering your breath, you...
August 24, 2026
#149 – The 11 largest Sleep Myths
Debunking 11 sleep myths, Matt begins by explaining that the brain remains active, not “off,” during rest. He goes on to argue that 7-9 hours...
August 17, 2026
#148 – Psychedelics for Mental Health
Matt delves into how psychedelics like psilocybin and LSD quiet the “Default Mode Network” to boost neuroplasticity. He describes these molecules as a “crowbar” that...
August 10, 2026
#147 – Does Sleep Really Clean Your Brain?
Matt explores the brain's secret plumbing, a waste-clearance network once ignored for over a century. He explains how the glymphatic system flushes metabolic toxins like...
August 3, 2026
#146 – How Sleep Changes Across the Human Lifespan
Matt tracks sleep across the human lifespan, from newborn “active sleep” to the shifts of healthy aging. He explores how biological milestones – like puberty,...
