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

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

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 ...

This made your chest cavity bigger. Your intercostal muscles between your ribs tightened up, too. This made your rib cage move up and out. Now breathe out. Your diaphragm loosened up and moved ...

That means letting the diaphragm — the large, thin muscle just below the rib cage — do the work of drawing air into the lungs and letting it out. It's known as diaphragmatic or belly breathing ...