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!
Hand numbness while sleeping has a variety of causes, including sleeping position, carpal tunnel syndrome and diabetes, according to WebMD. Other possible causes include vitamin deficiencies, alcoholism, infections and injuries.
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.