What actually causes that tingly feeling when your hand falls asleep?

Question

What actually causes that tingly feeling when your hand falls asleep?

In: Biology

Answer 1

To add to u/Chocolate_caffeine’s answer, not only the nerves in your hands, but the nerves in your arms, specifically the elbow. If you sleep with your arms bent, or you work with your arms bent, that can cause swelling which puts additional pressure on the nerves.

If it happens frequently or it wakes you up, you should see doctor.

Sleeping with your arms straight can help relieve the problem.