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The Matt Walker Podcast The Matt Walker Podcast Dr. Matt Walker Artificial Intelligence Masterclass Artificial Intelligence Masterclass AI Masterclass After Skool After Skool After Skool Quazi Johir Quazi Johir Quazi Johir CLACSO Radio CLACSO Radio CLACSO Every Animal Ever Every Animal Ever Dr Cesar Puechmarin, Zach Mander Cuentos y Leyendas de Honduras Cuentos y Leyendas de Honduras Cuentos y Leyendas de Honduras Expediente No Humano Expediente No Humano Fepo UFOs and Aliens UFOs and Aliens UFOs and Aliens ALIENS ARE REAL! | UFO and Alien Contact ALIENS ARE REAL! | UFO and Alien Contact ALIENS ARE REAL! Sliding Through Dimensions Sliding Through Dimensions Eric, Judyt, Xander Podcasts de la Revista Española de Sociología Podcasts de la Revista Española de Sociología Revista Española de Sociología The Grave Talks | Haunted, Paranormal & Supernatural The Grave Talks | Haunted, Paranormal & Supernatural Ghost Stores, Haunted, Paranormal & Supernatural Stories Rebel Economics with Professor Steve Keen Rebel Economics with Professor Steve Keen Professor Steve Keen Dark Mysteries — Unsolved Mysteries. Forgotten Secrets. Unanswered Questions. Dark Mysteries — Unsolved Mysteries. Forgotten Secrets. Unanswered Questions. Darkest Mysteries Online HOLOSKY PODCAST HOLOSKY PODCAST Holosky Podcast AI News Podcast | Latest AI News, Analysis & Events | Daily Inference AI News Podcast | Latest AI News, Analysis & Events | Daily Inference AI Daily Untold Radio Network Untold Radio Network Untold Radio Network Dental Digest Podcast with Dr. Melissa Seibert Dental Digest Podcast with Dr. Melissa Seibert Dental Digest Institute & Dr. Melissa Seibert: Dentist EconTalk EconTalk Russ Roberts Alpha Male Podcast - Christian Strength & Masculinity Alpha Male Podcast - Christian Strength & Masculinity Michael Milito Astronomy Daily: Space News Updates Astronomy Daily: Space News Updates bitesz.com The ATC Doublecut with Micah Woods The ATC Doublecut with Micah Woods Asian Turfgrass Center Каша в голове Каша в голове Лиза Гильман DayWeather Podcast DayWeather Podcast DayWeather Dr. Chapa’s OBGYN Clinical Pearls Dr. Chapa’s OBGYN Clinical Pearls Dr. Chapa’s Clinical Pearls Inner Propaganda with Owen Fitzpatrick Inner Propaganda with Owen Fitzpatrick Owen Fitzpatrick Real Ghost Stories Online Real Ghost Stories Online Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio Breaking Down: Collapse Breaking Down: Collapse Kory & Kellan Prehospital Paradigm Podcast Prehospital Paradigm Podcast University Hospitals of Cleveland Los Angeles Weather Daily Los Angeles Weather Daily Fast Foundations Phoenix Weather Daily Phoenix Weather Daily Fast Foundations San Diego Weather Daily San Diego Weather Daily Fast Foundations Goat Wise | Meat Goats, Feeding Goats, Goat Fencing, Livestock Management Goat Wise | Meat Goats, Feeding Goats, Goat Fencing, Livestock Management Millie Bradshaw, MS – Animal Scientist & Rancher San Francisco Weather Daily San Francisco Weather Daily Fast Foundations The Acres U.S.A. Podcast The Acres U.S.A. Podcast Acres U.S.A.® Parrot Stars Podcast Parrot Stars Podcast Parrot Stars
The Matt Walker Podcast

Science

The Matt Walker Podcast

Dr. Matt Walker

#142 - How Memory Affects Sleep

July 06, 2026 2:00am 29 min

Exploring how daily memories shape the biology of sleep, Matt reveals that, beyond consolidating facts, the brain's restorative depth is a response to daytime effort. By showing how learning deepens sleep in specific reg...

The Beekeepers Garden - A Sleep Story Read by Matt Walker

June 29, 2026 2:00am 25 min

Matt invites you to embark  upon a gentle journey to a peaceful, restful sleep. After settling in and breathing deeply, you will find yourself on a winding lane. Matt guides you past a mossy stone wall into Eleanor's gar...

#141 - The Daylight Mistake

June 22, 2026 2:00am 26 min

Matt illuminates sunlight’s biological impact beyond Vitamin D as he reveals that our eyes contain a hidden daylight circuit wired directly to the brain. These "sky detectors" use bright outdoor light to instantly boost ...

#140 - Tired but Wired

June 15, 2026 2:00am 29 min

Exploring the "tired but wired" state where exhaustion meets an overactive alerting system, Matt explains that insomnia is often a disorder of hyperarousal rather than a lack of sleep drive. Using metabolic data and brai...

#139 - Waking Up

June 08, 2026 2:00am 28 min

Matt explains sleep inertia - the groggy transition to wakefulness - noting that waking is a process, not a switch, and that brain regions activate at different speeds. While the core wakes fast, the prefrontal cortex, w...

#138 - The Sleepy Girl Mocktail

June 01, 2026 2:00am 31 min

Deconstructing the "Sleepy Girl Mocktail", Matt separates digital hype from rigorous sleep science. He delineates that tart cherry juice works not through trace melatonin, but as an anti-inflammatory "bodyguard" for tryp...

#137 - Bedtime Procrastination

May 27, 2026 11:00am 29 min

Matt examines "revenge bedtime procrastination," where individuals voluntarily delay sleep to reclaim autonomy. Distinguishing this "unlocked door" from the "locked door" of insomnia, he uses global data to explain how s...

#136 - Sleep & Sound

May 20, 2026 8:00am 33 min

Matt returns today to explain why humans didn't evolve for silent sleep. Citing the Hadza and the brain's "open microphone," he explains how we process sound for safety even while resting. He details the "first-night eff...

#135 - Two Windows: How Light Shapes your Sleep

May 13, 2026 2:00am 27 min

Matt delves into how daily light exposure dictates our sleep quality and how improper lighting can derail perfect sleep hygiene. He explains that our brain's internal clock naturally drifts backward by 14 minutes daily, ...

#134 - Seeing Inside the Brain with Prenuvo

May 04, 2026 2:00am 1:07

Dr. Daniel Durand, Chief Medical Officer and President at Prenuvo Medical Group,  joins Matt to discuss a proactive shift from reactive medicine to whole-body MRI screening. This radiation-free technology identifies 16 c...

#133 - Sleep & Doomscrolling

April 27, 2026 2:00am 32 min

Matt introduces "doomscrolling," linking compulsive online consumption to worsened sleep and mental health. He tracks social media's rise (1997-2016), noting increased addiction. By 2016, 82% of 12th graders spent six ho...

#132 - Sleep and Binaural Beats

April 20, 2026 2:00am 32 min

Exploring the science of binaural beats, Matt evaluates their potential to improve sleep. Tracing their discovery back to 1838, Matt explains that a binaural beat isn't a physical sound, but a "ghost tone" generated deep...

#131 - Sleeping with Pets

April 13, 2026 2:00am 27 min

Matt examines the ancient practice of sleeping with pets, a bond dating back 12,000 years. Once a practical norm for warmth and companionship, co-sleeping became controversial due to modern ideas of hygiene. This episode...

#130 - Shift Work and Solutions

April 06, 2026 5:00pm 31 min

The severe biological and psychological impacts of shift work on essential overnight workers come under Matt’s scrutiny today. He explains how modern schedules clash with our hardwired circadian rhythms, leading to alarm...

The London Apothecary - A Sleep Story Read by Matt Walker

March 30, 2026 2:00am 31 min

Join Matt on a gentle journey designed to help you drift into a peaceful and restful sleep. After settling into bed and releasing the day's tension with a few deep breaths, you will find yourself walking along a quiet st...

#129 - Natural Short Sleepers

March 23, 2026 2:00am 23 min

Matt delves into the fascinating science of "natural short sleepers," the rare 1-3% of the population genetically wired to thrive on just four to six hours of sleep. He unpacks the research that moved from scientific ske...

#128 - Sleep Position

March 16, 2026 2:00am 21 min

Matt reviews Danish neuroscientist Maiken Nedergaard's 2013 discovery: during sleep, glial cells shrink, allowing cerebrospinal fluid to flush brain toxins like beta-amyloid and tau protein. This "private sanitation syst...

#127 - Non-Restorative Sleep

March 09, 2026 2:00am 30 min

Matt explores the frustrating reality of non-restorative sleep, explaining why up to a third of adults get a full night's rest but wake up exhausted. Using a relatable example, Matt shows how this hidden epidemic is ofte...

#126 - The Coffee Paradox

March 02, 2026 2:00am 29 min

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 d...

#125 - Melatonin Explained

February 23, 2026 2:00am 25 min

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...

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