The Matt Walker Podcast

I n this latest AMA episode, Matt and Dr. Eti Ben Simon explore the complex web connecting sleep to our health and daily lives. They investigate the gut-brain axis, discussing how sleep deprivation alters the microbiome...

Matt confronts the systemic failure of sleep deprivation, examining its impact on our biological machinery. When sleep is short, the body's "fuel gauge" dips, impairing mitochondrial function and glucose tolerance...

Matt ventures into the realm of 40 Hz "gamma" rhythms - the conductor of the biological orchestra during high-order cognition - to explore how non-invasive light and sound stimulation can entrain brain activity, nudging...

The counterintuitive use of sleep deprivation as a rapid treatment for major depression finds itself squarely in Matt’s spotlight today. He begins by discussing its origins in the 1970s, where one night of wakefulness...

Matt delves into Heart Rate Variability (HRV), the subtle variation in timing between each heartbeat. He explains that a healthy heart is like a "jazz drummer," not a rigid metronome, and a higher HRV reflects a...

Diving into the controversial world of Modafinil, the "all-nighter in a pill", Matt begins with the story of Olympic sprinters using the narcolepsy drug as a loophole for a competitive edge. He then unpacks the science...

Matt explores the fascinating world of synesthesia today, challenging the notion that it's a rare quirk by proposing a bold claim: in subtle ways, we are all synesthetes. This idea is powerfully demonstrated by the...

Framing sleep not as a biological necessity, but as a critical economic asset, Matt reveals that sleep deprivation costs the U.S. economy up to $411 billion annually, with billions more lost globally. These costs stem...

In this user's guide to sleep trackers, learn the science behind how they work using motion and optical sensors as Matt explains the key metrics of Sensitivity, Specificity, and Accuracy. Revealing why most trackers...

Matt takes a deep dive into REM sleep this week, highlighting methods to enhance this vital stage for emotional regulation and creativity. Detailing pharmacological approaches, he focuses on the neurotransmitter...

In this soothing episode, Matt guides you on your personal sleep story towards deep, restorative rest. He invites you to find comfort and release the day's worries through intentional breathing, transporting you to a...

In this week’s episode, Matt Walker explores memory's astonishing malleability, challenging the belief that recollections are fixed. He highlights Loftus's car crash study, showing how subtle language altered speed...

Founder & CEO of Elevated Medical, Dr. Avinish Reddy, joins Matt today on this very special episode to discuss a comprehensive approach to longevity. One core theme presented is the profound interconnectedness of...

In this latest AMA instalment, Matt and Dr. Eti Ben Simon begin by discussing environmental influences on sleep. The conversation covers how high latitude and prolonged daylight disrupt circadian rhythms, with Eti...

Matt explores the critical link between sleep and Alzheimer's disease today, explaining how the brain’s "glymphatic system" clears toxic proteins like amyloid and tau during deep sleep. He describes how insufficient...

Matt and Dr. Eti Ben Simon join forces once again to answer all of your top sleep questions. This time around, they break down the science behind the snooze button, why you might be falling asleep during passive...

In this episode, Matt delves into the curious and cautionary tale of Delta Sleep-Inducing Peptide (DSIP), once hailed as a potential miracle cure for insomnia. In the 1970s, researchers were on a quest for a single...

Matt explores the human capacity for echolocation this week, dismantling the myth that this "biological sonar" is exclusive to animals. Revealing how peer-reviewed research shows all human brains possess the neural...

While we've long been told to focus on the quantity of our sleep, in today’s episode, Matt suggests a paradigm shift in our understanding of sleep health. He argues that the true cornerstone may not be how many hours we...

Settle in for a deeply comforting experience as Matt returns with a gentle voyage aboard "The Dreamer." This sleep story is crafted to soothe the heart and quiet the mind, creating a perfect sanctuary for rest. Tonight...

This week, Matt examines the viral trend of mouth taping, a practice touted as a remedy for snoring and sleep apnea. He explains the core theory, which centers on promoting the benefits of nasal over mouth breathing...

In their latest Ask Me Anything episode, Matt and Dr. Eti Ben Simon delve into the complex relationship between common substances and sleep. They first tackle cannabis, explaining that while THC may initially help with...

Matt welcomes UCSF sleep expert Dr. Aric Prather to the podcast this week to discuss the science of psychoneuroimmunology: the link between our behavior and immune health. After a primer on the immune system’s innate...

Prepare for a tranquil journey into sleep as Matt returns with a voyage aboard "The Dreamer." Let go of the day's events and allow your mind to quiet as we travel to a busy coastal town. Tonight, you’ll meet Sophia, a...

Matt delves into the science of "beauty sleep" this week, revealing it as somewhat of a scientific reality. He highlights research by Dr. Tina Sundelin, which demonstrates that sleep-deprived individuals are...