We all know abs are made in the kitchen -- but they're also perfected during your ab workouts at the gym and at home. Nutrition and fitness are the dynamic duo you'll need to rock a six-pack, if ...

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 ...

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 ...

The ultimate ab workout doesnt need to take you hours and hours. And it doesnt need to involve zounds and zounds of situps and crunches -- or heck, any at all. Truth is, your road to the core strength ...

I’m suspicious of any workout that promises to deliver results in a short amount of time. I’ve never been one of those people who could hit the gym hard for a week and see a change in my body. Any ...

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 ...

If you have 20 minutes, you have all the time you need to level up your abs with this quick bodyweight workout, which is part ...