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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The major muscle in ...

For fitness purposes we can roughly divide the body into three sections: the lower body (legs), the core (abs), and upper body (everything from the chest up including arms, shoulders, and back—but not ...

Add Yahoo as a preferred source to see more of our stories on Google. For a lot of serious bodybuilders, it’s simply not enough to lift the weights—they take the extra mental step of actively thinking ...