Matt Walker investigates the "coffee paradox," revealing how your morning ritual acts as both a health ally and a silent sleep disruptor. While coffee provides life-extending antioxidants linked to lower risks of heart disease and Alzheimer’s, its caffeine masks adenosine - the b ...Show more
#125 - Melatonin Explained
Matt redefines melatonin as the brain’s "clock whisperer" rather than a sedative, and explains that the hormone signals biological night rather than forcing sleep. Drawing on a meta-analysis, Matt reveals that a 4mg dose taken three hours before bed offers the most effective nudg ...Show more
#124 - Acting Out Dreams
Matt delves into the world of REM Sleep Behavior Disorder (RBD), a condition at the frontiers of sleep science. Normally, the brain dreams while atonia paralyzes the body in a neural magic act that is managed by brainstem nuclei activating inhibitory "brakes" in the spinal cord. ...Show more
Ask Me Anything Part 25: Sleep Talking, Long Covid, CBD/CBN, and Bedroom Environment
Matt and Dr. Eti Ben Simon begin their latest AMA by exploring somniloquy as fragmented noise within Stage 2 NREM sleep. They distinguish these vocalizations from REM Sleep Behavior Disorder, where the brain’s paralysis mechanism fails. The pair also examines how Long Covid trigg ...Show more
#123 - Sleep & the Microbiome
Matt explores a revolutionary shift in sleep science, identifying the gut microbiome as a secondary control center for rest. He elucidates the bidirectional gut-brain axis, where the Vagus nerve connects trillions of microorganisms to the brainstem, and details how bacterial meta ...Show more