Both core exercises can strengthen and tone your abs, improving stability and balance while building a visible six-pack. But ...

Ditch endless crunches. Try 4 bodyweight moves that target lower abs, improve posture, and strengthen your core after 40.

They’re often lumped together as “ab exercises,” but crunches and situps aren’t the same thing — and choosing the right one can impact your results (and your spine). So, if your goal is stronger abs, ...