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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You don’t necessarily need a bulky set of dumbbells to get the chest muscle activation you seek.

The chest press is a classic upper-body strengthening exercise that works your pectorals (chest), deltoids (shoulders), and triceps (arms). For the best results and safety, it’s essential that you use ...