Any time you subject your muscles to repeated physical activity and don't give them a chance to recover properly you are in jeopardy of injury. If you have ever experienced accumulating loss of manual dexterity, sharp pains in the forearm, or numbness stemming from playing a musical instrument or frequent computer use, you were very close to seriously injuring yourself. Sound familiar? Help others avoid similar symptoms by sharing tips on how to minimize the stress of frequent practicing and keep hands healthy.