eli5: What is actually happening when a body part “falls asleep”?

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I think pretty much everyone has experienced the pins and needles feeling, but what is actually happening to cause this feeling? And what determines how long it will take for the “effects” to subside?

In: Biology

8 Answers

Anonymous 0 Comments

Blood has left the building (area that has pins and needles) and it took all the oxygen with it too. Now your nerves feel weird cos they really like oxygen.

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