If a sleep cycle is approximately 90 minutes, how can 8 hours be the recommended sleep time?

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Isn’t waking up mid-cycle sub optimal?

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Anonymous 0 Comments

Mostly because you need more than one sleep cycle. Sleep is the time during which the connections between neurons are formed, it’s the time when memories are engraved. More importantly, it’s also the time when your brain is cleaned. Literally. The cerebral fluid that surrounds your brain is flushed so that the toxins your brain accumulated can be released in the bloodstream. Brains in humans are big and complex, so it makes sense it takes some time to properly flush them out.

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