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 ...

These are the moves that will build the upper body strength and size you want.

Your sternum is located in the middle of your chest and is also known as the breastbone. It protects the organs of your torso from injury and serves as a connection point for other bones and muscles.

Prolonged sitting, bad posture and repetitive movements can create weak links in the muscular system that trigger ...