‘Pull My Finger Study’ Settles Knuckle Cracking Debate

Still find it annoying.....

nside your fingers once and for all — and they filmed an MRI of it.

“We call it the ‘pull my finger study’ — and actually pulled on someone’s finger and filmed what happens in the MRI. When you do that, you can actually see very clearly what is happening inside the joints,” Greg Kawchuk, a professor in the Faculty of Rehabilitation Medicine and lead author of the study, said in a statement.