Why We Sleep - Matthew Walker

This was a really good book.

Matthew Walker talks about the importance of sleep.  He says that lack of sleep is attributed to a number of problems, from cancer, heart disease, dementia, depression, and other ailments.  He backs up these claims with studies.  He also doesn't claim causality where the research does not indicate it.

Walker says that whereas he previously thought that sleep was one of the three pillars of health, along with diet and exercise, he now puts sleep on a tier above diet and exercise.  I believe what he says.

This was an important read for me, and it emphasizes to me how much I need to work hard on sleep.

I plan to read this book over to reinforce what I've learned.