As you struggle through your third set of crunches at the gym, one motivator might be the promise of six-pack abs. But for some people, this may not be physically possible — not because they aren't ...

Ah, the elusive six-pack abs. You see them on strong women like Sydney Sweeney, Jennifer Lopez, and Lindsey Vonn, and might wonder: is it genetics, a celeb trainer, or endless hours of core workouts ...