The Matt Walker Podcast

#136 - Sleep & Sound

#135 - Two Windows: How Light Shapes your Sleep

#134 - Seeing Inside the Brain with Prenuvo

#133 - Sleep & Doomscrolling

Doomscrolling—the compulsive consumption of negative online content—creates a destructive feedback loop that severely degrades sleep quality and mental health. While blue light exposure is often blamed for sleep disruption, research indicates that the primary driver is the cognitive and emotional arousal triggered by i...

#132 - Sleep and Binaural Beats

Binaural beats function as a neurological phenomenon where the brainstem perceives a "ghost tone" by computing the difference between two slightly mismatched frequencies delivered to each ear via stereo headphones. While the popular hypothesis suggests these beats induce brainwave entrainment to match specific states l...

#131 - Sleeping with Pets

#130 - Shift Work and Solutions

The London Apothecary - A Sleep Story Read by Matt Walker

#129 - Natural Short Sleepers

#128 - Sleep Position

Sleep position profoundly influences human health through mechanisms ranging from brain waste clearance to mechanical pressure on organs. Research across neuroscience, gastroenterology, and orthopedics consistently identifies side sleeping as the most efficient posture for physiological maintenance. During sleep, the b...

#127 - Non-Restorative Sleep

Non-restorative sleep describes a condition where individuals feel unrefreshed despite achieving objectively adequate sleep duration. Affecting up to one-third of adults, this state acts as a primary driver for serious health complications, including cardiovascular disease, chronic pain, and major depressive disorder. ...

#126 - The Coffee Paradox

#125 - Melatonin Explained

Melatonin functions as a "chronobiotic"—a biological clock whisperer—rather than a sedative for inducing sleep. Misunderstandings regarding its purpose often lead to suboptimal usage, as many people incorrectly take it immediately before bed. To effectively shift the circadian rhythm, melatonin should be administered t...

#124 - Acting Out Dreams

Ask Me Anything Part 25: Sleep Talking, Long Covid, CBD/CBN, and Bedroom Environment

#123 - Sleep & the Microbiome

Sleep is not merely a neurological phenomenon controlled by the brain; it is a collaborative process involving the gut microbiome. The gut-brain axis, primarily via the vagus nerve, allows trillions of microorganisms to influence sleep architecture and circadian rhythms. These bacteria produce butyrate, a critical meta...

#122 - Exercise vs. Insomnia

The podcast explores the relationship between physical activity and insomnia, highlighting a study that analyzes the effectiveness of different exercises in improving sleep. Yoga is presented as the most effective for increasing sleep duration, adding nearly two hours of sleep per night, while Tai Chi offers sustained,...

#121 - A Practical Guide To Insomnia

The podcast addresses insomnia, explaining what it is, its causes, and how to overcome it using Cognitive Behavioral Therapy for Insomnia (CBTI). It details five core strategies of CBTI: stimulus control, time in bed restriction, sleep hygiene, cognitive restructuring, and relaxation techniques. Stimulus control involv...

Ask Me Anything Part 24:Tinnitus, SAD, Sleep Divorce, and Vaccines

#120 - How Sleep Deprivation Hijacks Your Genetic Code

Sleep deprivation fundamentally disrupts genetic expression, impairing essential biological maintenance and repair mechanisms refined over millions of years. Chronic sleep restriction alters the activity of hundreds of genes, specifically downregulating those responsible for DNA repair and cellular quality control whil...