Alexis Ren's ab workout on Youtube has 55 million views, but is it legit? Here's what happened when I did it every day for 3 ...

This eight-minute abs workout from Pilates instructor Lilly Sabri is a great example of this. Throughout the workout, you do ...

Transform your abs with this expert-designed 10-minute weighted workout. Learn 5 effective exercises that build a stronger ...

I used to dread gym time—then I tried the workout A-list celebs are obsessed with: Pilates. Thirty days left my abs tighter ...

As a fitness editor, I’m no stranger to an ab challenge, but this seven-minute workout really challenged my midsection. I felt my deep abdominal muscles (the transverse abdominis) switch on almost ...

When lifting weights, a good rule is resting for 48 hours of recovery time per muscle group, fitness experts say.

Mark Wahlberg’s new workout video shows just how ripped he is at 53. Here's what keeps the celeb ultra-fit and forever jacked ...

With strategic workout finishers, you can build muscle ... Getting tired of your usual round of abs exercises? These six core strength movements will ensure you don't plateau.