the.com/shuteye
the body's free nightly tune-up your brain books while you're not looking.
means Sleep, especially in the informal sense of a quick or much-needed rest.
from A plain compound of "shut" and "eye" — literally the closing of the eyes that ushers in sleep. It surfaces as slang in the 19th century, the kind of breezy, picture-it phrasing English loves: name the gesture (eyes clamped shut) and let it stand in for the whole act. A cousin in spirit to "forty winks," where the body's small mechanics get borrowed to mean the larger sleep they signal.
- brain rinse
- Sleep flushes toxins via the glymphatic system
- slang origin
- Coined as American slang in the 1890s
- micro version
- A 20-minute nap sharpens alertness for hours
- dolphin trick
- Dolphins sleep one brain hemisphere at a time
- deprivation cost
- Skipping it impairs you like being drunk
for instance
rip van winkle — washington irving's 1819 character who slept for 20 years in the catskill mountains
sleeping beauty — charles perrault's 1697 fairy tale of aurora cursed to sleep for 100 years