Forget the floor—this high-efficiency standing workout uses light resistance to target your upper abs, lower abs, and obliques in a fraction of the usual time.

Sit-ups and crunches are effective core exercises, but they’re also moves that can leave you feeling pain in your neck the following day if you’re not careful with how you do them. Any abs exercise ...

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Summer is right around the corner, and if you're looking for a challenge—and a six-pack—Jeff Cavaliere, C.S.C.S., of Athlean-X has you covered with an ab workout that’s built for all fitness levels.

Here’s an easy routine to get you started. The gentle moves require no equipment — and are actually pretty fun to do. By Jen Murphy Some exercisers thrive on the motto of “harder, faster, stronger.” ...