17 Nov 2025
2h 17m

No.1 Sleep Expert: Magnesium Isn’t Helping You Sleep! This Sleep Habit Increases Heart Disease 57%

Podcast cover

The Diary Of A CEO with Steven Bartlett

In this episode of The Diary Of A CEO, Steven Bartlett interviews neuroscientist and sleep expert Dr. Matthew Walker about the latest sleep science. They discuss the impact of sleep on various aspects of health, including cardiovascular disease, the immune system, and cognitive function. Walker introduces the concept of "sleep banking," where individuals can build up a sleep surplus in preparation for periods of sleep deprivation. He also debunks the myth of the blue light effect from devices and emphasizes the importance of regularity, digital detox, and managing light exposure for better sleep. The conversation covers sleep disorders, the use of melatonin, and the potential benefits and drawbacks of supplements like magnesium and ashwagandha. Walker also shares insights on the different stages of sleep, the importance of REM sleep for emotional processing and creativity, and the discovery of genetic short sleepers. Finally, they discuss a new class of sleeping medication and its potential benefits for improving sleep quality and brain health.

Outlines

Part 1: Sleep Fundamentals

Part 2: Sleep Macros and Circadian Rhythm

Part 3: Sleep Cycles and Functions

Part 4: Sleep Medications and Reflections

Sign in to continue reading, translating and more.

Open full episode in Podwise