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.
Carpal tunnel syndrome is a common repetitive-stress motion disorder. It is caused by nerve compression and can be quite painful, although symptoms usually start gradually. At first, an affected individual may notice numbness and tingling in the hand, which is often eventually followed by continuous pain. Another cause of left hand numbness could be nerve damage or disease.