MRI Video Reveals What it Actually Looks Like When You Crack Your Joints

By Casey Chan on at

It's one of the most addictive things humans can do. Everyone does it. And it feels so good when you get to do it. We're talking about cracking your joints. Researchers have always been curious as to where the sound of joints cracking comes from and put a hand under MRI to find out (and for us to see visualised in real time). They've figured it out.

TheĀ scientific paper's abstract details:

Cracking sounds emitted from human synovial joints have been attributed historically to the sudden collapse of a cavitation bubble formed as articular surfaces are separated. Unfortunately, bubble collapse as the source of joint cracking is inconsistent with many physical phenomena that define the joint cracking phenomenon. Here we present direct evidence from real-time magnetic resonance imaging that the mechanism of joint cracking is related to cavity formation rather than bubble collapse.

You can read moreĀ here.

MRI video reveals what it actually looks like when you crack your joints


This article originally appeared on Sploid, a Gizmodo blog of delicious brain candy