Matthew Walker

Date: 2018-04-25 | Duration: 1h 59m

Episode Overview

Matthew Walker dives deep into the science of sleep, revealing its critical role in physical health, cognitive function, and emotional well-being. He explains how substances like alcohol and marijuana, despite their sedative effects, disrupt REM sleep—the stage essential for memory consolidation, creativity, and emotional regulation. Walker shares striking insights into how REM sleep activates parts of the brain more intensely than waking hours, and why we tend to forget dreams due to the brain’s unique chemistry during this phase. He also discusses the dangers of chronic sleep deprivation, linking it to increased risks of Alzheimer’s disease, obesity, impaired immune function, and even fatal medical errors. The conversation highlights practical advice for improving sleep quality, such as maintaining consistent sleep schedules, controlling room temperature, and minimizing exposure to artificial light that suppresses melatonin production. Walker recounts compelling studies on how sleep enhances athletic performance and skill acquisition, emphasizing that practice alone isn’t enough—sleep is the key to mastery. He also addresses societal challenges, including the epidemic of sleep loss among children and shift workers, and the cultural glorification of sleep deprivation in professions like medicine. Throughout, Walker stresses the urgent need to prioritize sleep as a fundamental pillar of health and productivity.

About Matthew Walker

Matthew Walker is a renowned Professor of Neuroscience and Psychology at the University of California, Berkeley, and the Founder and Director of the Center for Human Sleep Science. With a profound expertise in the science of sleep, he is the author of the bestselling book "Why We Sleep: Unlocking the Power of Sleep and Dreams," which has captivated readers and sparked a global conversation on the importance of sleep for mental and physical health. Walker's engaging insights into the mysteries of sleep and its impact on our lives make him a compelling figure in the fields of neuroscience and psychology, as he continues to illuminate the vital role sleep plays in our well-being and performance.

Key Moments

– Sleep Stages
– REM Sleep
– Sleep and Memory
– Sleep Deprivation Effects
– Sleep and Athletic Performance
– Sleep and Mental Health
– Sleep and Hormones
– Sleep Disorders
– Sleep and Neurodegeneration
– Sleep Hygiene
– Circadian Rhythms
– Sleep and Nutrition
– Sleep and Technology
– Sleep and Creativity
– Sleep and Immune Function
– Sleep and Safety
– Sleep and Aging
– Sleep and Pharmacology
0:01:26 – Half brain activity during hotel room sleep
0:03:46 – Alcohol and marijuana block REM sleep
0:06:57 – REM rebound after alcohol consumption
0:09:01 – Ultra marathon runner sleep deprivation study
0:12:21 – Dreams and belief in unreal experiences
0:13:09 – Brain activity increases during REM sleep
0:14:29 – Reasons why we forget dreams
0:17:20 – Non-conscious memory processing during sleep
0:19:02 – Noradrenaline levels drop in REM sleep
0:21:06 – Memory fading after DMT experiences
0:23:56 – Multiple functions of REM sleep
0:28:20 – Critical body processes during REM sleep
0:32:35 – Sleep enhances practice and skill perfection
0:36:25 – Physical performance difference with sleep
0:40:49 – Sleep benefits on skill performance
0:44:58 – Using sleep as a tool for creativity
0:49:17 – Light exposure suppresses melatonin hormone
0:50:35 – Importance of consistent sleep schedule
0:53:16 – Core body temperature drops to induce sleep
0:55:11 – Historical concept of segmented sleep
0:59:16 – Sleep loss linked to Alzheimer's risk
1:00:01 – Night shift work classified as carcinogen
1:03:43 – Napping benefits and recovery
1:06:01 – Fasting effects on sleep quality
1:10:09 – Drowsy driving dangers surpass alcohol and drugs
1:12:41 – Later school start times improve student outcomes
1:17:43 – Meal timing's impact on sleep quality
1:21:49 – Subjective vs objective sleep quality
1:26:57 – Sleep deprivation affects brain maturity
1:28:27 – Global experiment on daylight saving time effects
1:32:20 – Long-term damage from chronic sleep deprivation
1:34:55 – Beta amyloid and deep sleep connection
1:37:38 – Amphetamine use and sleep disruption in Silicon Valley
1:41:09 – Increased surgical errors with insufficient sleep
1:42:00 – William Halstead's extreme sleep deprivation
1:48:52 – Sleep aids for international flight travelers
1:53:12 – Economic benefits of solving sleep epidemic

Transcript Excerpt

Starting point is 00:00:00 And we're live. Starting point is 00:00:31 in a week because I'll do like a Thursday, Friday, Saturday, like with gigs. And then by Starting point is 00:01:02 Those people that work at the Department of Motor Vehicles, they work half asleep. Starting point is 00:01:18 But yeah. Starting point is 00:01:26 So when you're in a hotel room, what is happening that half your brain is not really sleeping? Starting point is 00:01:56 It is true, but I think it's also our low IQ. But it's the deep stages of sleep, three and four of Starting point is 00:02:36 it fills in the blanks of like, why, even if I get, you know, seven, eight hours sleep on the Starting point is 00:03:13 Yeah. Starting point is 00:03:46 Like what is happening there? Yeah, so both of those chemicals, both of which are used as a sleep aid, alcohol and marijuana, are actually very good at blocking your dream sleep, your rapid eye movement sleep. Starting point is 00:04:25 normally have you get that plus the brain tries to get back some of that dream sleep that it's Starting point is 00:04:56 What happens there is a kind of an acute version where the alcohol is swilling around in your system. Starting point is 00:05:32 Yeah. So marijuana, it does help people. Well, help it. It puts people to sleep quicker. Starting point is 00:06:10 REM sleep. It will start to block the process. We think perhaps at the level of the brainstem, Starting point is 00:06:57 There what happens is that the alcohol has been blocking dream sleep for so long and the pressure for dream sleep is built up so powerfully in the Starting point is 00:07:31 Okay, yeah. Starting point is 00:07:57 Wow. Starting point is 00:08:20 we've lopped off almost 20% of that, if you look at the data. Starting point is 00:09:01 Wow. We had a woman on the podcast. Her name is Courtney DeWalter, and she's a ultra marathon runner. Starting point is 00:09:36 minute one minute the entire time she tried to lie this is over three days I...

Read the full transcript

More Episodes

Frequently asked about this episode

Who was the guest on Joe Rogan Experience #1109?

Matthew Walker was the guest on JRE #1109. This page includes the episode overview, topics discussed, and related resources.

What topics were discussed on JRE #1109?

On Joe Rogan Experience #1109 with Matthew Walker, topics include Sleep Stages, REM Sleep, Sleep and Memory, and Sleep Deprivation Effects.

Where can I read the transcript for JRE #1109?

The full searchable transcript for Joe Rogan Experience #1109 with Matthew Walker is on the dedicated transcript page for this episode, with timestamps and in-page search.