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 ...

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 ...

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 ...

Runners have a habit of prioritizing strength training from the waist down. It makes sense; we want to fortify the muscles that power our miles while protecting the joints that take the most pounding.

Bodybuilding legends Lenda Murray and Andrea Shaw have teamed up. The duo, with 14 Ms. Olympia titles between them, just ...

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 ...

Having well-defined pectorals, or “pecs” for short, is essential to a balanced body. A great chest definitely turns heads, but more importantly, it’s essential to making an athlete stronger for ...

Fitness trainer Brett Boettcher shared seven effective exercises that target key muscle groups and promote a healthier and ...