What if I told you that one of the best, most unique ab exercises is something you will almost never see someone at your gym doing? It doesn’t require any equipment, and can even be done in some ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

While classic core exercises like sit-ups, planks and crunches are undoubtedly effective, they're not the only way to strengthen your abs, and if you prefer you can stay standing and do a low-impact ...