Tanja197
Answered

FACT of the day "The cause of the popping sound produced by knuckle cracking(fingers) is largely a mystery."



Answer :

melissadeaver02
It is not a mystery it is the gas piping out of your joint when you pop them if you push down on them. If you pull on your fingers then it is your joint being pulled out and put in. If you push on your fingers it is better than pulling because pulling can cause joint damage.

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