We cannot accurately judge how sleep-deprived we are when we are sleep deprived (Walker, 2017). In the emergency services, sleep deprivation is a constant reality.

Quick facts about sleep Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory ...

On the first page of his 2017 book, “Why We Sleep: Unlocking the Power of Sleep and Dreams,” author Dr. Matthew Walker cuts to the chase: “Routinely sleeping less than six or seven hours a ...

From your focus and hormones to your skin and heart, how well you sleep shapes how well you live. Here’s why sleep matters — and what it’s doing behind the scenes while you snooze. 1.

Matthew Walker, Ph.D., author of the bestseller Why We Sleep: Unlocking the Power of Sleep and Dreams, is part of Somnee's founding research team.

Just 100 years ago, we understood astoundingly little about sleep and dreaming. A tight-knit band of researchers changed things, against sometimes considerable odds.

Diamandis is the founder of the XPRIZE Foundation and Abundance360, and author of Longevity Guidebook: How to Slow, Stop, and Reverse Aging—and NOT Die from Something Stupid Today, at the age of ...

There was Matt Walker’s book, “ Why We Sleep,” which is more a scientific understanding of sleep and dreams. And then you have (Sigmund) Freud and Carl Jung, who have a more mystical approach.

If, instead, you pass into the next stage of sleep without rousing, that dream will never enter long-term memory. REM sleep occurs about every 90 minutes, and it lengthens as the night drags on.

Here’s how it works. Estimates suggest we spend roughly one-third of our lives in dreamland. Learn more about the science of sleep. (Image credit: CSA Images via Getty Images) ...

Matthew Walker, Ph.D., author of the bestseller Why We Sleep: Unlocking the Power of Sleep and Dreams, is part of Somnee's founding research team.