What Is Back
Calhan High School gymnasium in Calhan, Colorado A gymnasium, also known as a gym, is an open air or covered location for gymnastics, athletics, and gymnastic services. The word is derived from the ancient Greek gymnasium.[1] They are commonly found in athletic and fitness centers, and as activity and learning spaces in educational institutions. "Gym" is also slang for "fitness center", which is often an indoor facility. What Is Back: Back pain: Causes, symptoms, and treatments Last updated Thu 23 February 2017 By Christian Nordqvist Reviewed by Peggy Pletcher, MS, RD, LD, CDE Causes Risk factors Symptoms Diagnosis Treatment Prevention Back pain is a common reason for absence from work and doctor visits. Although back pain may be painful and uncomfortable, it is not usually serious. Even though back pain can affect people of any age, it is significantly more common among adults aged between 35 and 55 years. Experts say that back pain is asso