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 ...

IN THE AGE of peak fitness influence on social media, there's no shortage of exercises circulating your feed. While it's nice to have a vast library of movements to keep your days in the gym ...

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 ...

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 ...

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 ...

Strength training for women is unparalleled for its benefits. It's one of the only activities that can boost strength, bone density, mobility, and metabolism, and fire up all those feel-good ...

For the full 31-day plan, including daily strength, mobility, yoga and meditation routines —plus meal plans, walking podcasts and inspiration — download the Start TODAY app! When you hear the term ...