eli5 why do body parts take a few moments to wake up when they fall asleep instead of waking up instantly? also why do they feel so uncomfortable while waking up?

Question

eli5 why do body parts take a few moments to wake up when they fall asleep instead of waking up instantly? also why do they feel so uncomfortable while waking up?

In: 9

Answer 1

When a body part falls asleep, it’s mostly because a nerve is compressed and not sending signals. Once you change position and stop compressing the nerve it takes a little while to get up to speed again.

Answer 2

When a body part falls asleep, it’s mostly because a nerve is compressed and not sending signals. Once you change position and stop compressing the nerve it takes a little while to get up to speed again.