Your pectoralis major is a large and powerful chest muscle that’s shaped like a fan. It starts from two sections: your breastbone (sternum) and your collarbone (clavicle). The two sections come ...

Do you want to change the shape of your body through exercise? Or maybe you’re an athlete who wants to improve your swing or throw. If so, building your chest muscles can help achieve these results.

A muscle strain in the chest may cause sharp pains when moving or breathing. They commonly occur due to impact injuries or overuse and are often treatable with rest, pain relievers, and physical ...