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 ...

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 ...

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 ...

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 ...

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One popular fitness expert shares the best home ab workout and 7 intense lower ab exercises, for a combination that hits your entire core. Lower abs are a common challenge; targeted workouts can be ...

Ditch the floor and stop straining your neck with outdated crunches.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 ...

Compound exercises like squats and deadlifts do well to target your abs while working out. If you want to focus on additional core work, consider adding up to three ab workouts per week. Doing ab and ...