When someone stretches or bends their knuckle to crack it, they increase the space between the bones, which creates a drop in pressure in the joint. As a result of that pressure drop, the dissolved ...

It’s quite common to hear your knees crack when you stand up or your knuckles pop as you stretch your fingers. These sounds, often described as snapping, clicking, or popping, are medically known as ...

Have you ever heard the term crepitus? Probably not! But you do experience it every day. Crepitus is the grating, grinding, or crackling sound that accompanies the sensation produced by movement of ...

A bit of relief, or maybe just a force of habit: We’re separating fact from fiction about what happens when you crack your knuckles and other joints. * It all has to do with the “synovial fluid” in ...