Videos Why Do Joints Pop? 105 views Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? science anatomy What's your reaction? 0 AWESOME! 0 NICE 0 LOVED 0 LOL 0 FUNNY 0 FAIL! 0 OMG! 0 EW! Comments Comment 0 comment Best Oldest Newest Write the first comment for this! Facebook Conversations
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