The Science of Sleep

The science of sleep is unambiguous. Everything has to sleep. There's never been a species studied at any level that does not sleep. So why would we think we don't need it? And we don't even understand why scientists know that everything sleeps but they really don't know why. Why we have to go into this state, it's really a great passage in the beginning of the book why we sleep. Matthew Walker talks about what if you just had a baby and somebody came into you and said Ms. Mangan you've had a healthy baby girl. And she will undergo every single day she will fall into a deep coma where she’s unresponsive to virtually everything around