the.com/sleep
a third of your life spent rehearsing death and calling it rest.
means the natural, recurring state of reduced consciousness in which the body rests, the eyes close, and most voluntary activity stops, allowing brain and body to recover.
from From Old English 'slǣpan' (to sleep) and the noun 'slǣp,' descending from Proto-Germanic '*slēpaną' — making it a cousin of Dutch 'slapen' and German 'schlafen.' Many trace the deeper root to a Proto-Indo-European sense of 'being slack' or 'limp,' the same loosening idea behind 'slack' itself — sleep as the body going soft and letting go.
brain washSpinal fluid flushes brain toxins while you sleep
world recordEleven days awake before hallucinations took over
half asleepDolphins sleep one brain hemisphere at a time
muscle paralysisYour body locks itself during dreams to prevent acting
giraffe dealThey survive on roughly thirty minutes nightly