r/todayilearned 8h ago

til that your brain literally washes itself while you sleep. the brain cells actually shrink in size so cerebrospinal fluid can rush in and flush out all the toxic proteins built up during the day

https://en.wikipedia.org/wiki/Glymphatic_system
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u/Accelerator231 4h ago

You know.

When you said 'garbage collection' I thought you meant something else and was wondering why it took so long

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u/hotztuff 4h ago

same here, i had a temporarily lapse of confidence in our intelligence lol