When the wrist is held in an awkward position or force is used during such activities, the likelihood of injury increases. If you spend more than about an hour at a task, also do stretching exercises during breaks. Young bodies can be injured too Many young people can spend hours each day in a single activityusing the computer, playing electronic games,engaging in a sport, or practicing a musical instrument. All these activities are likely to involve repetitive motions of the hands and wrists. Therefore it is never too early to learn to protect against repetitive stress injury.
Young bodies produce large amounts of growth hormones.
These hormones help the body grow new tissue to replace damaged tissue. That means injuries heal quickly. It also means that injuries can occur without one's realizing it. In adolescence the body makes less of these hormones. Therefore damage to tissue is more likely to cause pain and lasting injuries.