Why does the human body jerk/shock itself awake sometimes while trying to sleep?

Question

Why does the human body jerk/shock itself awake sometimes while trying to sleep?

In: 2959

Answer 1

There are a few leading theories, but ultimately we are anxiety ridden apes and our brains subconciously torment us for reasons, and that is supposed to help us survive. Most of our anxiety stems from behavioral patterns(both concious and unconcious) that allowed us to survive in the early days of humanity. But now we have survival responses firing off for no reason and its deeply upsetting to most people.