Your body is a very, very complex machine that is constantly trying to maintain the correct balance of countless substances to stay alive. Some of that “maintenance” can only be done effectively while you are asleep. Your wounds heal faster while you’re asleep. After working out, you must get sufficient sleep to build muscle effectively. Your brain actually switches to a different “mode” while going through various stages of sleep, which are critically important for cognition and memory. Your brain also generates a bunch of metabolic waste products while you are awake, and these can only be cleared out while you’re sleeping.
Long-term sleep deprivation prevents your body from effectively fixing itself, and you’ll start falling apart mentally and physically.
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