Some workers, however, ignore their pain and maintain their automobiles better than their bodies. When they are injured, they assume doctors can heal them as easily as mechanics heal cars. Your body needs respect, rest, and maintenance. It can't be contorted into a limitlessly pliable machine interface. RSI injuries often take a very long time to heal - some are permanent.
Exercise allows muscles to stretch and work more efficiently.
It also improves blood circulation, which supplies soft tissue with essential nutrients and removes waste products. I have found regular exercise to be more effective than any antiinflammatory drug. Hitting a punching bag at the gym on your lunch break is probably not wise. Find a sport that won't add to the stress on your limbs. See the listed resources to learn safe stretches designed specifically for computer users.