Repetitive stress injuries

The manufacturer places a warning against improper use on the underside of my keyboard. The warning begins “Continuous use of a keyboard may cause repetitive stress injuries (RSI) or related injuries.” Later it says, “If you feel any aching, numbing or tingling in your arms, wrists or hands, consult a qualified health professional.” This is serious stuff. The potential health problems can be painful, worrisome, and costly. Carpal tunnel syndrome, the repetitive stress injury receiving the most publicity, can cripple. Other related ailments should get immediate medical attention. By most accounts, the most vulnerable workers include journalists, typists, and computer programmers. Most observers blame the recent epidemic of RSIs on the diffusion of PCs into the workplace