Add Yahoo as a preferred source to see more of our stories on Google. "Muscle imbalances can be a product of performing too many exercises in single planes of motion," explains Joelle Cavagnaro, MS, ...

Use these movements to combat the negative effects of sitting for long periods ...

When it comes to toning the upper body, the biceps and triceps may get all the love, but chest exercises shouldn’t be overlooked. Chest workouts offer a variety of benefits from building strength to ...

Shoulder stiffness has become one of the most common complaints in modern life. But fitness experts say a surprisingly simple movement may help loosen tight muscles and restore mobility in just ...

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 ...

You might not think about your back muscles often, but they do a lot to support your upper body. A regular back-strengthening routine can ease fatigue and stiffness while also improving mobility. If ...

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 upper back is an ...

There’s something profound about seeing a person with correct posture. Forget sitting — most of us, whether we lift or not, don’t even stand straight. We tend to have variations of what my trainer ...

Chair exercises for arms over 50, try 5 expert-approved moves to firm triceps and shoulders with trainer guidance.