We spend about one-third of our life sleeping, yet we still don’t completely understand this bizarre ritual we carry out each night. You lie down, your body goes unconscious, you see the weirdest pictures in your head, and then wake up only to repeat the whole process the next day. 

Although from the outside it seems like nothing but a routine, if we take time to think about it, it is just the opposite: there is a whole world of details and curiosities that we would not suspect at first glance. Here are some fascinating facts about sleep and what happens during that time.

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