Dear Health Care Provider, What if there was one prescription that could prevent and treat dozens of diseases, such as diabetes, hypertension and obesity? Would you prescribe it to your patients? Certainly. The guiding principles of Exercise is Medicine ® are shared by the American College of Sports Medicine (ACSM) and the American Medical Association (AMA). They are designed to help improve the health and well-being of our nation through a regular physical activity prescription from doctors and other health care providers.