This Video Shows What Really Happens When You Crack Your Knuckles

by Emily Arata

Snap, crackle, pop: Whatever you call it, there's been a lot of recent debate about knuckle-cracking.

After a wave of discussion these past few weeks about what exactly is happening to joints during those stretches, Vox has taken its exploration a step further by creating a video breaking down what knuckle cracking looks like – from inside the body.

The short also clears up any confusion you might have about the distinction between sounds made by popping tendons and those made by the fluid in your knuckles.

Crack away, you knuckleheads.

This one's for you.