Many of us are guilty of mindlessly cracking our knuckles, but few of us know what really goes on under our skin when we do it!
This video shows us a quick, easily-understandable look at the science behind knuckle-cracking—where that popping sound comes from, how it affects our joints, and so on.
Watch it and decide for yourself whether to keep or kick your knuckle-cracking habit for good!
Credit: Vox on YouTube
