Sleep and Nature's Ability to Go Offline

Sleep allows us to use less energy and at the same time not expend energy so every animal sleeps differently for differing amounts of time relating to its ecological niche. If you had to be awake 24 hours a day that's a lot of foraging, hunting or farming which uses up a lot of food it's far more evolutionarily adaptive if we take one third of the roughly one third but it's really less off there can be more of us there's food more food supply and and so on.

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