No he doesn't crack his knuckles. That's just his character name.
what makes knuckles crack is carbon dioxide bubbles in your knuckles along with cartilage.
You can't. They get bigger as you crack them. Don't crack your knuckles or you'll resort to big knuckles!
Not everyone can crack their knuckles. About half of those people who responded to an online poll could 'always' crack their knuckles, while a third could 'sometimes'. That leaves about 15 percent that said they could not crack their knuckles.
2 out of every 3 Americans crack their knuckles. There are some theories that say cracking the knuckles may be harmful and can cause arthritis.
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No. Cracking your knuckles does not cause your hands to swell.
Yes, depending on how often you do it. If you crack your knuckles a lot then you will continually have to crack them more unless you prevent yourself from doing so. Cracking your knuckles actually releases the nitrogen in between your joints.
The sound you hear when you crack your knuckles is actually the sound of carbon dioxide gas bubbles bursting.http://en.wikipedia.org/wiki/Knuckle_cracking
In general, no - cracking knuckles appears to be a sterotypic action of humans and possibly primates.
if you crack them all the time, then yes