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 ...

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, ...

Some people like the sound of knuckle-cracking and others loathe it, but for years there has been disagreement among scientists about what actually causes it. Researchers said on Wednesday they have ...