There are many great exercises for increasing your core strength. One of the best is the Russian Twist. Learn how to perform ...

Not feeling like hitting the gym today? No problem! All you need is a yoga mat and 20 minutes to strengthen your core—no crunches required. Part of the Women's Health Ultimate Abs Challenge, this ...

Instructions: After the warmup, perform the four exercises for 40 seconds each to complete one set. Rest for 20 seconds between each set. Repeat for a total of four sets. Today’s workout is all ...

Ab workouts are always in high demand—they’re the subject of more than 1.8 million Google searches every month. These mid-body muscles are responsible for the famous six-pack shape and form part of ...

If you still want to build a rippling six-pack in the gym then you need to make sure you’re spending time doing the right exercises and not wasting your time on the wrong ones. Good thing Sports ...

For years, sit-ups were considered the ultimate ab exercise. But modern research shows they’re not the safest or most effective way to build true core strength. Experts now recommend exercises that ...

Many guys might lazily toss in a set or two of situps at the end of their gym session, thinking that’s enough (probably more in hopes of exposing a six-pack than building strength). We don’t blame you ...

Ditch the floor and stop straining your neck with outdated crunches. Discover the 7 dynamic standing moves that build a rock-solid core and real-world functional strength while you're on your feet.

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. Do you want a strong ...

You just crushed the Women’s Health Flex Challenge—go you! What’s next? How about a 7-day core-sculpting challenge? Enter: The Women’s Health+ Ultimate Abs Challenge, a week-long program that ...

Abdominal bracing is an exercise motion that you’ve likely encountered and performed, whether you realize it or not. It’s the movement that’s implied when your coach, fitness instructor, or physical ...