Sit on an exercise mat and engage your core. Lean backward to create a V-shape position. If you want to, lift your feet away from the ground and either bend your knees or straighten your legs. Engage ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If you've completed a core workout—or 100 of them—over the years, you likely know what crunches are ...

If you're just starting a fitness routine and looking for a beginner abs workout, you may think sit-ups and crunches are necessary evils. But good news–you can skip 'em and still see results. This ...

While many workout regimens flame out as quickly as it took them to start trending, others stand the test of time. Exercises like tai chi, running, swimming, hiking and yoga, for instance, have been ...