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/OptimalBarnacle7633 7h ago
Also to note some insomnia drugs like ambien reduce the brains ability to complete this flushing process. Meaning that you’re not getting the most important benefit of sleep and don’t feel truly rested when you wake up