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 is usually caused by damage, irritation or compression of one of the nerves or a branch of one of the nerves in your arm and wrist. Diseases affecting the peripheral nerves, such as diabetes, also can cause numbness, although with diabetes similar symptoms usually occur first in your feet. In very uncommon instances, numbness can be caused by problems in your brain or spinal cord, although in such cases arm or hand weakness or loss of function also occurs. Numbness alone is only rarely associated with potentially life-threatening disorders, such as strokes or tumors.
Carpal tunnel syndrome occurs when pressure is placed on the nerve, according to MayoClinic.com This pressure, which is usually due to inflammation, causes numbness in the hands and fingers, pain and weakness of the hand. The cause of carpal tunnel syndrome can be arthritis, diabetes, hormone disorders or repetitive use of the hand and wrist.