Why can’t humans decide to sleep, why do we have to fall asleep?
In: Biology
Our brains have many layers of control systems that evolved at different times. Sleep is an ancient system from the times of very primitive brains, while conscious will developed eons later. There is *some* wiring that lets us do primitive things by our own will, such as consciously controlling our breathing, but sleep isn’t one of the things that have this.
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