Why when i’m trying to sleep, sometimes my body do the fake fall thing ?
In: Biology
It’s called a [Hypnic Jerk](https://en.wikipedia.org/wiki/Hypnic_jerk), and it’s not exactly known what causes it. It happens to healthy people pretty much at random. Some people think its related to an ancient reflex that kept monkeys from falling out of trees at night, but there isn’t much evidence.
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