Compression or ‘pinching’ of one of the main arm nerves can cause tingling, numbness, and nerve pain in the arm. Physical therapy, medications, and surgery can treat pinched nerves. A pinched nerve ...

The radial nerve is in the arm, and it helps control the movement of the triceps, the extension of the wrist and fingers, and the sensation in part of the hand. Radial nerve injury can cause pain, ...

Bionic arms are beginning to tap into nerve signals that linger long after a limb is gone, turning the ghost of movement into real, controllable action. Instead of relying on crude muscle twitches or ...