If you have 10 minutes to spare, you have enough time to tackle this effective core workout that puts you through two rounds of fast-paced exercises to target your upper and lower abs.

This workout uses nothing than a dumbbell, has just six moves, and takes less than half an hour to give your core a good burn ...

As much as I love a good set of crunches and sit-ups, there are times when I’d prefer not to have to unroll my yoga mat and lie down on the floor. When I’m traveling, for example, or when there’s just ...

Each move in this workout is done in the plank position, so your core will have to work overtime to get through this abdominal assault. Incorporating a flow of various upper body moves will work your ...

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 ...

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Everyone loves crushing an abs workout-but you might not always have a whole lot of time to dedicate to getting cut up. You want to spend hours on the gym floor running through every situp and plank ...

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 ...

Grab a dumbbell and give this quick workout a go ...