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.
Numbness in one or both hands describes a loss of sensation or feeling in your hand or fingers. Often, numbness in hands may be accompanied by other changes, such as a pins-and-needles sensation, burning or tingling.The arm, hand or fingers may feel clumsy or weak.Numbness can occur along a single nerve, or it may occur in both hands in a symmetrical pattern. 1  Causes.ften, numbness in hands may be accompanied by other changes, such as a pins-and-needles sensation, burning or tingling. The arm, hand or fingers may feel clumsy or weak. Numbness can occur along a single nerve, or it may occur in both hands in a symmetrical pattern.