Good sleep is critical to our innate physiological repair processes, while poor sleep triggers a cascade of negative downstream consequences, from insulin resistance to cognitive decline, as well as mental health issues.

Study after study has found powerful associations between insufficient sleep and adverse health outcomes ranging from the common cold to cardiovascular disease.

But as important as sleep is for the physical body, it may even be more so for the brain. Good sleep—in terms of both amount and quality—is critical to our cognitive function, our memory, and even our emotional equilibrium.

Below is a collection of past articles, audio clips, and podcasts discussing the science of sleep and how sleep can be a powerful longevity tool. If you are new to this content, I would strongly recommend listening to our 7-part series with sleep expert Matthew Walker, where we discuss everything you could possibly want to know about sleep, the affects of sleep on your health, and how to improve it.

#136 – AMA #17: Body composition methods tour de force, insulin resistance, and Topo Chico

“Skeletal muscles are the greatest reservoir that you have for glucose disposal.” —Peter Attia

#132 – AMA #16: Exploring hot and cold therapy

“All of the work that went into this analysis earlier in the year, it really changed my tune. And I think I’m now at the point where I kind of want to have a sauna, frankly, in the tool kit for longevity.” — Peter Attia

#127 – AMA #3 with sleep expert, Matthew Walker, Ph.D.: Fasting, gut health, blue light, caffeine, REM sleep, and more

“Could we think that sleep could now provide a contribution to this Horvath clock of determining your biological age? . . .I think it probably does.” —Matthew Walker, Ph.D.

#126 – Matthew Walker, Ph.D.: Sleep and immune function, chronotypes, hygiene tips, and addressing questions about his book

“It’s not time that heals all wounds. It’s actually time during REM sleep and dreaming that provides this emotional convalescence.” — Matthew Walker, Ph.D.

#124 – AMA #15: Real-world case studies—metabolic dysregulation, low testosterone, menopause, and more

As a follow up to AMA #14 where Peter explained his framework for analyzing labs, this “Ask Me Anything” (AMA)…

#116 – AMA with Dom D’Agostino, Ph.D., Part I of II: Ketogenic diet, exogenous ketones, and exercise

“If you restore insulin sensitivity, you’re better able to access and burn fat.” — Dom D’Agostino

Qualy #129 – Evolutionary reasons to sleep

Today’s episode of The Qualys is from podcast #47 – Matthew Walker, Ph.D., on sleep – Part I of III:…

#92 – AMA #12: Strategies for longevity (which don’t require a doctor)

“If you are interested in longevity, if you are interested in playing with your great grandkids, you want to prioritize muscle mass. Never in the history of civilization has a 90 year old said, ‘I wish I had less muscle.’” —Peter Attia

#89 – AMA #11: All things fasting

“Truthfully, in humans, we don’t necessarily know exactly what the dose curve looks like for duration of fasting to physiologic output of desired consequence.” —Peter Attia

A new year

A couple of unrelated events over the past few months have led me to view 2020 as a year to implement some new routines around my mental and emotional health.

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