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 ...
An MRI image of the same hand before knuckle cracking (left) and after (right), showing the void (dark spot) in the joint fluid that forms when the knuckles are cracked. An MRI image of the same hand ...
When someone stretches or bends their knuckle to crack it, they increase the space between the bones, which creates a drop in ...
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