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Why Does Matt Walker Bike Facing the Morning Sun? · Huberman Lab

The Science & Practice of Perfecting Your Sleep | Dr. Matt Walker

In this episode, my guest is Dr. Matt Walker, Ph.D., Professor of Neuroscience and Psychology and the Founder & Director of the Center for Human Sleep Science at the University of California, Berkeley. He is also the author of the international best-selling book Why We Sleep and the host of "The Matt Walker Podcast." We discuss the biology of sleep…

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Notes

Why Do Erections and Discharge Hit in Paralyzed Dream Sleep? at 9:52

On Huberman Lab, involuntary muscles stay unparalyzed during rapid eye movement sleep, which is one reason men have erections and women have vaginal… Full answer
How Did a Much Later Bedtime Leave Deep Sleep Short? at 22:05

On Huberman Lab, a night that begins at 3 a.m. rather than at 10:30 p.m. Full answer
How Did Every Sleep Stage Stay Non-negotiable? at 27:26

On Huberman Lab, a face-value reading treats sleep as profoundly detrimental. Full answer
Why Do Short Sleep and Poor Sleep Both Leave You Impaired? at 32:54

On Huberman Lab, four hours of sleep leave you impaired the next day even when the quality is brilliant, and eight hours of sleep leave you impaired when the… Full answer
Why Does Matt Walker Bike Facing the Morning Sun? at 41:34

Matt Walker starts workouts around 7:45 or 8 in the morning on a spin bike facing an east window so exercise and daylight arrive together, even though the… Full answer
Why Does Caffeine Block Sleepiness Instead of Raising It? at 51:53

On Huberman Lab, caffeine latches onto adenosine receptors and blocks them. Caffeine does not activate the receptors. Full answer
Why Did Matt Walker Float Three Cannabidiol Sleep Routes? at 1:29:40

On the show, Dr. Matt Walker refuses to state that CBD is beneficial for sleep, because he says nobody can make that statement now. Full answer
Why Does Melatonin Rise Hours Before Sleep? at 1:33:14

On the show, melatonin usually starts to rise as dusk approaches, hours before sleep. Full answer
How Far Off Were Melatonin Bottles on Huberman Lab? at 1:47:40

On Huberman Lab, one speaker is concerned about high melatonin because the hormone has effects on the reproductive axis. Full answer
Did Apigenin Really Improve Sleep on Huberman Lab? at 2:01:46

On Huberman Lab, fifty milligrams of apigenin about thirty minutes before sleep went with a subjectively better night. Full answer
How Did Insomnia Therapy Beat Sleeping Pills for Years? at 2:05:35

On Huberman Lab, sleeping pills are a short-term solution to certain forms of insomnia and are not recommended for the long term. Full answer
Why Does Matt Walker Say Dream Sleep Shuts Serotonin Off? at 2:13:33

Matt Walker says REM sleep is the only time in the 24-hour period when serotonin and noradrenaline, also called norepinephrine, shut off completely. Full answer
How Did Short Naps Improve Astronaut Mission Performance? at 2:18:48

Matt Walker says NASA pioneered short naps back in the 1990s. Full answer
Why Did Long Sleep Line Up With Earlier Death? at 2:25:53

Seven to nine hours is the sweet spot for sleep and all-cause mortality. Below seven hours, shorter sleep predicts a shorter life. Full answer
How Did Matt Walker's Concern Journal Halve Falling Asleep? at 2:50:50

Difficulty and anxiety at night in the dark is not the same difficulty and anxiety in the light of day. Full answer
Why Does Matt Walker Say Clocks Worsen a Tough Night? at 2:54:36

On Huberman Lab, the guidance is to remove all clock faces. Full answer

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