Hmmmm...back and knuckle crackers out there...do u actually know what causes the 'cracking' sound???
Used to be an avid knuckle cracker since my primary school days....cut down a hell lots already after realising that my joints actaully grew bigger and fatter...hence didn't want fat stubby fingers to develop...
Anyway, did a lil' research myself and even asked my anatomy professor abt it. SO yea....
Escaping gases: Scientists explain that synovial fluid present in your joints acts as a lubricant. It contains the gases oxygen, nitrogen, and carbon dioxide. When you pop or crack a joint, you stretch the joint capsule. Gas is rapidly released, which forms bubbles. In order to crack the same knuckle again, you have to wait until the gases return to the synovial fluid. Hhahaa.....did u know that???
Movement of joints, tendons and ligaments: When a joint moves, the tendon?s position changes and moves slightly out of place. Hence you may hear a snapping sound as the tendon returns to its original position. In addition, your ligaments may tighten as you move your joints. This commonly occurs in your knee or ankle, and can make a cracking sound.
Did u know that there are actually 2 cracking sounds whenever u crack ur knuckles or back???
The first sound happens when you pull your joint and create a bubble. The second sound is the bubble popping.
Then like me....some of u maybe questioing if its good or bad?
There is no scientific evidence that cracking your knuckles leads to arthritis, or that it's bad in any way. However, it can't be good to repeatedly push a joint beyond its normal physical range rite? Cracking your knuckles can cause a decrease in your grip in the long run...problems probably set in like in the 30's for ppl who crack em regularly....so unless u're some big shot cricket bowler or baseball pitcher signing some multi-million dollar contract.....then, docs think that its pretty alrite to continue.
Well...its ur decission lah....just thought i'll share this info with u coz i was always puzzled by it....hmmmm....gosh i'm making my blog sound like some medical infopage! Sounds like one of those Dear Aunt Aggie sorta thing...just that the question ain't about stupid teenage love relationships! Hahahah!