A stomach bulge during sit-ups may mean diastasis recti or a hernia. Both conditions are treatable, often with exercise or medical intervention.

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 ...

Sit-ups often come to mind when you think about working your abs or strengthening your core. It’s one of the most old-school, well-known exercises for ab-shredding, but recently, it’s become less and ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images While classic core exercises like sit-ups, planks and crunches are ...