ZZZ...

Six scientific reasons why your brain needs you to sleep more

by Jennifer Walter
Updated: 
Originally Published: 
The photo of sleeping koala
Shutterstock

Shutterstock

Ah, the mystery of sleep. We need so much of it, and yet scientists still don’t fully understand why.

Shutterstock

But we do have an idea of what can happen if we don’t sleep: conditions like fatal familial insomnia, if untreated, can be deadly.

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