Sinopse

A New York Times bestseller and international sensation, this “stimulating and important book” (Financial Times) from the director of UC Berkeley’s Center for Human Sleep Science is a fascinating dive into the purpose and power of slumber. As the Guardian said, Walker explains “how a good night´s shut-eye can make us cleverer, more attractive, slimmer, happier, healthier, and ward off cancer.” With two appearances on CBS This Morning and Fresh Air´s most popular interview of 2017, Matthew Walker has made abundantly clear that sleep is one of the most important but least understood aspects of our life. Until very recently, science had no answer to the question of why we sleep, or what good it served, or why we suffer such devastating health consequences when it is absent. Compared to the other basic drives in life—eating, drinking, and reproducing—the purpose of sleep remains more elusive. Within the brain, sleep enriches a diversity of functions, including our ability to learn, memorize, and make logical decisions. It recalibrates our emotions, restocks our immune system, fine-tunes our metabolism, and regulates our appetite. Dreaming creates a virtual reality space in which the brain melds past and present knowledge, inspiring creativity. In this “compelling and utterly convincing” (The Sunday Times) book, preeminent neuroscientist and sleep expert Matthew Walker provides a revolutionary exploration of sleep, examining how it affects every aspect of our physical and menta

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