Why We Sleep - Matthew Walker

Why We Sleep - Matthew Walker - non review

This is an oddity. I heard about this book on the excellent Science Fictions podcast, where I was told that anyone with an interest in popular science had probably read this 2017 book - I hadn't, and after hearing their podcast I wouldn't want to, but felt it worth highlighting some key points.

As the Science Fictions podcast notes, the book 'said, among other things, that we are living through an epidemic of sleeplessness, that the less we sleep the sooner we die, and that sleeping less than six hours a night doubles your risk of cancer.' No surprise it was a big seller. But it appears that the book is riven with errors and its underlying thesis seems to have little or no scientific basis.

A lot of the podcast was inspired by a fact-check by Alex Guzey that only covered the first chapter, yet uncovers a whole host of issues. I'd suggest taking a look at that fact check and, if you want more, listening to the podcast. But if, like me, you haven't read the book, I'd be inclined to give it a miss. I certainly will be.

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Non-review by Brian Clegg - See all Brian's online articles or subscribe to a weekly email free here

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