One man cracked his knuckles in one hand for 60 years and not the other. Watch the video to see what he found out. Subscribe to our channel! <br /><br />Vlogging Channel: Link to video: <br /><br />Here's what happens to your knuckles when you crack..<br /><br />Here's what happens to your knuckles when you crack.<br /><br />In this episode, Josh explains why cracking your knuckles isn't literally cracking your knuckles. Along the way, we learn about a doctor who spent over 60 ye.
