Why we need 8 hours of sleep a night

Here’s the Ted talk I mentioned in class today that covers the way the brain cleans itself during sleep.

Very cool. Also, scary, because it’s become almost a badge of honor to get by with little sleep.

I recently read the book “Why We Sleep” by Matthew Walker. I sorta got sucked into it after watching him on Joe Rogan:

Here are the podcast notes if you’re interested but don’t want to watch the whole thing. Lots of interesting facts, way beyond the typical “turn your phone off an hour before bed” stuff. For example: the World Health Organization has classified shift work as a probable carcinogen, based on the overwhelming research evidence that insufficient sleep is linked to significantly increased risk of certain types of cancer (colon, prostate, and breast). Yikes.

Here’s a short video he put together that sort of summarizes all the bad things that happen if you don’t get enough sleep.

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