It can happen so quickly. One minute you’re double stacking rafts on a trailer for a week of boating. The next minute, you’re on the gravity train. The sound of a twisted ankle popping under the force ...

If you’ve ever popped or cracked your joints — by accident or on purpose — you’re not alone. There’s even a medical name for that crackling, clicking or popping sound your bones make: crepitus.

Joints often crack due to harmless gas bubbles in fluid or tendons moving over bones. While usually normal, persistent pain, ...