When it comes to strength training, certain muscles take center stage—pectorals, lats, quads, and delts often dominate ...

This area also contains muscles, blood vessels, and nerves that support and protect these organs. Problems with organs or supporting structures in or around the left rib cage region can contribute ...

A pulled (or strained) muscle could take a few days to feel better. Severe injury could take weeks to months. Find out what ...