One of the hard lessons we've learned in medicine is that Repetitive Use Injuries are real. We don't have to have a traumatic incident to incur an injury in a joint, muscle or tendon. All that has to happen to seriously wound a joint or muscle is repeated use day after day without proper maintenance and recovery.
Realizing this, one area that takes a pounding in modern life is the hand & wrist! Day after day, between using the computer to writing to driving, the hand & wrist never get a break! And who takes the time or even knows how to perform maintenance on this vital body area?