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.
Other causes of numb hands may include: 1  Nutritional deficiencies, such as vitamin B1 deficiency. 2  Multiple sclerosis. 3  Stroke. 4  Disorders of the brain and spinal cord.