HealthDay discusses how too much exercise or playing sports can lead to overuse injuries.  

These injuries include damage to bones, ligaments, tendons and muscles due to repetitive actions, such running, throwing, biking, and swimming, to name a few.

Pain is usually felt when lifting overhead, and is most common in active adults in their 30s and 40s. Sports medicine surgeon and chief of the Shoulder and Elbow Division of the Sports Medicine Institute at HSS, Lawrence V. Gulotta, MD,  said this type of injury often stems from poor technique and rushing when lifting weights. 

Read the full article at healthday.com.