UC Davis radiology professor Dr. Robert Boutin and a colleague studied the sounds and effects of knuckle cracking. Special to The Bee Snap, crackle, pop. If you’re a knuckle cracker, that familiar ...

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.

The wince-inducing sound of knuckles cracking is caused by a small bubble building up in the fluid of the fingers then ‘popping ‘, scientists believe, and it could even be beneficial to health. For ...