Why does cracking your knuckles make that noise?
What's really happening when you "crack" your knuckles:
The noise you hear is actually the creating of small bubbles of nitrogen. This is an absolutely harmless thing to do despite all the "old wife's tales" to the contrary.
Cracking your knuckles is something you might do out of habit. Many people find the noise of it to be annoying. You stop cracking your knuckles as you would stop any other habit, by turning your attention to something else when you go to do it. With time, you should find that you are cracking your knuckles less and less.
Well Cacking our knuckles Some people thing it causes arthritus, but actually the sound is caused by a various form of gasses that are being let off by the cracking sound, cracking your knuckles can also make your knuckles swell or puff, So it doesn't do anything to your BODY but it does do something to your knuckles!
Cracking your knuckles does not make your knuckles bigger as a common myth says. It simply relieves the air pockets that can accumulate in the knuckles and "pops" the air bubble. The frequent cracking could possibly lead to arthritis in later age, so it is best to not crack your knuckles. infact im a well trained nurse and just so you know cracking you knuckles is definitely not harmful!!!!!!! xx