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 ...

Your chest may not be the first muscle group that comes to mind when you think about pull-ups—but if you want to lift your body with control, you can’t skip it. A strong chest helps you stabilize your ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Did you know that your chest muscles are essential in ...

Welcome to our latest workout routine designed specifically to strengthen and tone your upper body. Want to transform your arms, chest, and back? This workout routine will help you tone and define ...

Strength exercises are especially important for women over 50, playing a vital role in the maintenance of muscle mass, bone density, and overall physical function. Strength training may also help ...

While I truly enjoy working every muscle group, strengthening my pecs isn't exactly my top priority. But here's why you shouldn't skip chest exercises. “I think that the constant fear from women when ...

Bra bulge exercises to tighten the bra line. A NASM-certified trainer shares 5 morning moves plus posture tips.

Prolonged desk work can lead to musculoskeletal problems ranging from continual pain to injuries. This month, we launched a six-part series showing you how to stretch and strengthen your body to ...

You may have rolled your eyes as a teen when an adult told you to “stand up straight” or “stop hunching your shoulders,” but they had a good point: poor posture can lead to misalignment, muscle and ...