Question: what causes sleep paralysis?

Agnes Wojtusiak answered on 10 Nov 2018:

Our body is really clever! When you sleep and dream, your body stops you from acting out those dreams and keeps you safe in your cosy bed. Unfortunately, sometimes your mind wakes up before your body realises, so the same thing that keeps you safe while you sleep, can really freak you out once you wake up D:
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I don’t really know much more about it, it’s not something I have studied, but sleep in general is a super interesting topic – it’s a shame there is nowhere near enough time in my life to learn all about everything T_T