You’ve probably familiar with the abs muscles—the ones you see poppin' on sculpted celebs like J.Lo or Halle Berry, but there’s way more to core strength than those visible six-pack muscles. Behind ...

Editor’s note: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical ...

You’ve probably seen it all over your feeds: Fitness pros and physical therapists talking about “training the deep core.” But unlike crunches or Russian twists, these exercises don’t come with a pump ...