Definition of meta-analysis : a quantitative statistical analysis of several separate but similar experiments or studies in order to test the pooled data for statistical significance new!
Numbness or tingling in the hands occurs when nerves in the arm or wrist are compressed or damaged, according to WebMD. One of the simplest causes for nerve compression during sleep is when the arm is bent for a prolonged time or rested underneath another part of the body.
Cramps or numbness in the hands could be caused by something normal: sleeping in a bad position and blocking blood flow is quite normal. But at other times, it doesnât have anything to do with your position. It is an unpleasant sensation that sometimes shows up in other areas of the body as well, like the legs or feet.