Duong Le

“After thirty years of intensive research, we can now answer many of the questions posed earlier. The recycle rate of a human being is around sixteen hours. After sixteen hours of being awake, the brain begins to fail. Humans need more than seven hours of sleep each night to maintain cognitive performance. After ten days of just seven hours of sleep, the brain is as dysfunctional as it would be after going without sleep for twenty-four hours. Three full nights of recovery sleep (i.e., more nights than a weekend) are insufficient to restore performance back to normal levels after a week of short sleeping. Finally, the human mind cannot accurately sense how sleep-deprived it is when sleep-deprived.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams

“Humans are not sleeping the way nature intended. The number of sleep bouts, the duration of sleep, and when sleep occurs has all been comprehensively distorted by modernity.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams

“Inadequate sleep—even moderate reductions for just one week—disrupts blood sugar levels so profoundly that you would be classified as pre-diabetic.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams

“Sleep is the single most effective thing we can do to reset our brain and body health each day -- Mother Nature's best effort yet at contra-death.”
― Matthew Walker, Why We Sleep: Unlocking the Power of Sleep and Dreams