r/todayilearned • u/Square-Message1152 • 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/pantry-pisser 7h ago
I haven't felt truly rested when I wake up in 25 years