If you enjoy sports, you know you can get injuries. Because sports injuries can create special problems for your body, there's a special branch of medicine to deal with them. But sports medicine isn't any one thing: it combines medical science with knowledge of how the human body works. Research plays a big part in this field, but there are doctors who diagnose and treat injuries that happen during sport events and/or physical activities. There are also specialists who manage pain after an injury, as well as deal with illnesses and diseases that might have effects on health and physical performance.