Carpal Tunnel Syndrome
Carpal tunnel syndrome has long been associated with computer use, so it's no surprise that it's a physical symptom of gaming addiction. Carpal tunnel syndrome is caused when the main nerve between the forearm and hand is squeezed or pressed. This occurs when the carpal tunnel - the area of the wrist that houses the main nerve and tendons - becomes irritated or swollen. Overuse of a computer mouse can cause such irritation and swelling, as can excessive use of a video game controller.