Your armpit, also known as the axilla, contains a large collection of lymph nodes, hair follicles, and sweat glands. A number of things can cause pain in the hollow created by your chest wall, muscles ...

Staff Sgt. Lance Valencia, a broadcast journalist assigned to the 628th Air Base Wing public affairs office, curls a dumbbell during his lunch break at the air base fitness center, Joint Base ...

Post-workout soreness can be normal, but sharp or lasting pain may need attention. Explore the signs that separate typical soreness from a possible injury.

Soreness is a common result of consistent and intensive muscle activity. Whether doing cardio or weight training, muscle pain can be a positive sign of the muscles’ growing and strengthening. However, ...