A sleep expert explains what happens to your body and brain if you don’t get enough sleep

Sleep is one of the most important parts of a healthy lifestyle — doctors typically recommend 7-9 hours each night. But when we don’t get enough sleep, it can have serious effects on our brains and bodies, putting us at higher risk for diseases and cancer. Sleep expert Matthew Walker breaks down the many side-effects of sleep deprivation

Following is a transcript of the video.

Matthew Walker: My name is Matthew Walker, I am a

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