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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.
Cutting a tree is a physical change. To release the carbon, there has to be a chemical change. Burning or rotting will release the carbon.
Condensing (Gas>>Liquid), freezing (Liquid>>Solid)
The release of energy can have physical or chemical causes.
The physical reactions to a deep kiss are the feelings of anticipation and excitement that cause the brain to release feel good endorphins and neurotransmitters like dopamine, whose target actions include voluntary movement and emotional arousal and noradrenaline for wakefulness and physical arousal.
The sound of knuckles cracking is caused by gas bubbles rapidly collapsing in the synovial fluid in the joints. This release of gas creates a popping or cracking sound.
Cracking knuckles doesn't cause knuckles to permanently swell or increase in size. The temporary swelling after cracking is due to the stretching of the joint capsules and the release of gas bubbles, which does not result in long-term changes like enlarged knuckles.
Yes, when you crack your knuckles, you are actually causing a sudden release of gas bubbles that have formed in the synovial fluid around your joints. This release creates the popping sound that is commonly associated with knuckle cracking.
No, cracking your knuckles does not cause them to get bigger. The sound you hear when cracking your knuckles is the release of gas bubbles in the joint, and it does not have any long-term effects on the size of your knuckles.
Truth or Scare - 2013 Does Cracking Your Knuckles Cause Arthritis 1-3 was released on: USA: 26 July 2013
Cracking your knuckles is believed to be caused by the release of gas bubbles in the synovial fluid within the joints. It does not cause arthritis, contrary to popular belief. However, excessive knuckle cracking may lead to reduced grip strength and joint swelling.
Knuckles "crack" because gas builds up in the joint and is released when you apply pressure to it. So really cracking is not a correct term. Release of gas is.
There is no direct link between feeling nervous and cracking knuckles. People may crack their knuckles when they are nervous as a habit or a way to release tension, but it is not a necessary or universal response to nervousness.
The joints in the spine are under negative pressure (suction). When the suction is broken, like when you crack your knuckles, the suction release creates a cracking sound sound.
No, you wouldn't get a bone cancer if you crack your knuckles. The type of joint in the knuckles are saddle joints which do lock up periodically and can be unlocked by "cracking" your knuckles. There is NO evidence that doing this periodically, unless it becomes an obsessive-compulsive behavior is in any way bad for you.
Mine does not, but I suspect that, if yours does, it is due to the sudden release of gas that can build up in your spinal column and is the same phenomenon as cracking the knuckles of your hands.
Popping and cracking noises in the knee are not unusual. If it's not accompanied by pain, it is probably not worth worrying about. Sometimes it's caused by the release of gases as the space between the two bones changes (the same phenomenon that causes your knuckles to crack or pop). Sometimes, it's caused by ligaments that rub or snap across a bone as it moves (like a rubber band snapping). [I'm a physical therapist--with arthritis]