Carpal tunnel syndrome, a nerve disorder that affects the hands and wrists, is often caused by repetitive motions such as typing on a keyboard. A recent study of office workers found that, among those who do similar amounts of typing, workers reporting the least control over their own work had almost three times the risk of developing carpal tunnel syndrome as did those who reported the most control.
The statement 'Feeling a lack of control over one's own work tends to put one under emotional stress that makes one more susceptible to nerve disorders' most helps to explain the study's findings.