You use your chest muscles, or pecs, all the time—when you push a door, lift a child, or even just sit up straight. They're a key part of your upper body strength. By exercising your chest regularly, ...

THE CHEST IS a muscle group that takes up a great deal of attention for physique-minded guys. If you pause a moment to think about why, you won't need long to figure out the appeal of chest-pumping ...

Developing bigger pectoral muscles, or "pecs," is one of the most common goals for anyone focused on building upper-body strength or improving their physique. After all, a strong, well-developed chest ...