SACRAMENTO, Calif. – Snap, crackle, pop. If you’re a knuckle cracker, that familiar sound when you consciously pop your joints is like comfort food. You know it might not be so healthy for your hands ...

The human body has always been something of a two-legged calliope—a sound effects machine capable of an almost unlimited range of noises. Some are pretty easy to understand—the whistle, the sneeze, ...

Snap, crackle, pop! Those sounds are usually associated with crisp rice cereal — but for some people, it describes the noise their joints make, too. To someone cracking their neck, knuckles, or back, ...