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.
Another cause of left hand numbness could be nerve damage or disease. In such cases, the lack of sensation is frequently associated with pain described as prickling pins-and-needles in the hand. Burning sensations are also common with such conditions.