Add Yahoo as a preferred source to see more of our stories on Google. We spend hours hunched over phones and computer monitors day in and day out. It’s no surprise we have an epidemic of back pain.

This is one of the most fundamental dumbbell exercises for the lats, says TJ Mentus, a certified personal trainer. “The lats work to pull the elbows into the sides and keep the shoulders back,” he ...

View post: I Was Crushing My Evening Workouts but Sabotaging My Sleep. Here's How I Fixed My Internal Clock In a recent video, Jeff Cavaliere, CSCS, of Athlean-X shares two of the most effective, ...

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. When you’re just ...