Why we sleep: unlocking the power of sleep and dreams

There is controversy around some of the claims made in this book, so I don’t take any single point of evidence extremely seriously. But the person who critiqued the book also has some weird ideas about sleep,For instance, he believes that we evolved in a sleep-deprived environment so sleep deprivation must be healthier for us. so in the end I think I probably side with the sleep scientist for most issues except when he seems extreme.
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