It can be easy to default to biceps, triceps, and shoulder exercises on upper body workout days. I know I'm guilty of it. But you're missing an important muscle group: the chest. Working the chest (or ...

Using dumbbells instead of a barbell allows for greater range of motion, which puts more emphasis on working chest muscles. Lie back on a bench holding a dumbbell in each hand just to the sides of ...

TRAINING FOR YOUR target physique will always be more complicated than just hoisting some weights, flexing in the mirror, and praying for muscle growth. You'll need to follow a smart plan—and then, ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...