Here's what really happens when you crack your fingers and knuckles.<br /><br />Like us on Facebook: https://www.facebook.com/TopTrending<br />Follow us on Twitter: https://twitter.com/TopTrending<br /><br />Narrated by Toby Ricketts: https://www.tobyrickettsvoiceover.com<br /><br />What Happens When You Crack Your Knuckles?
