Technological advancement has brought about plenty of timesavers for an easier life. The list is long. It can start with cars, washing machines, airplanes and several instant communication gadgets. All these gadgets have also brought a possibility of injuries.
You may have heard of repetitive strain injury which is caused by an action that is done repeatedly over long periods of time. This condition was common in factory workers earlier at places like assembly lines. It was prevalent also with typists.