They used an MRI machine and slowly pulled a finger until it cracked.
They don't believe this activity was associated with poor joint health.
So until you hear otherwise, crack away!
Scientists at the University of Alberta ran some tests to get to the bottom of it.
Cracking your knuckles is a habit that many people have.
What they found was pretty gross!
It's oddly satisfying to feel that "pop" in your fingers.
But some people claim it's bad for your health.
Scientists set out to determine if this was true.
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