What Happens When I Crack My Knuckles?

The video explains that knuckles don't crack but pop due to a gas bubble forming between bones. The sound is from the bubble bursting, though the loudness remains unexplained. Frequent knuckle cracking can lead to joint swelling and reduced grip strength over time.

Why do researchers not know why the sound of knuckle cracking is so loud?

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What is the potential effect of a lifetime of knuckle cracking on grip strength?

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