All living creatures need sleep. The question is: why? In Why We Sleep, neuroscientist and sleep expert Dr. Matthew Walker presents groundbreaking discoveries about sleep and how it affects all aspects of our physical, mental, and emotional health, including our creativity and longevity. So why should you sleep, and how can you improve your quantity and quality of sleep? Unfortunately, most people in modern societies are sleep-deprived, and we don’t even realize it because we’re so used to operating at suboptimal levels. It’s time we understand and unlock the transformative power of sleep. 

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