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by CityVista
on 12/7/16
Do you take 40 winks after lunch?

A study at NASA on sleepy military pilots and astronauts found that a 40-minute nap improved performance by 34% and alertness 100%
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Winston Churchill, John F. Kennedy, Ronald Reagan Napoleon, Albert Einstein, Thomas Edison and George W. Bush are known to have valued an afternoon nap.
https://sleepfoundation.org/sleep-topics/napping/
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