Is it ok to crack your knuckles?
BY: WEATHER CHANNEL
You've probably heard it many times, don't crack your knuckles it's bad for you. Well, is it really? It turns out some scientists have actually studied this and the answer is "no."
It all has to do with a substance in your joints known as synovial fluid. This fluid helps reduce friction when your joints move by acting as a lubricant.
Scientists used to think the cracking came from bubbles in the fluid bursting. But this year researchers recorded this video of a knuckle cracking and found that the crack you hear comes from a cavity forming.
So nothing is being broken or damaged, and it doesn't lead to arthritis in our later years.
Now, is cracking your knuckles annoying to people around you? We'll leave that for you to decide.
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