What Happens When You Crack Your Knuckles

Countless people crack their knuckles many times a day. We’ve all heard that cracking your knuckles can cause arthritis. But that ‘fact’ has been debated for years. One man actually cracked the knuckles on just one hand for 60 years to see if there would be a difference with his other hand over time. Vox explains all they know about knuckle cracking.

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