why do our bones crack?

Answer 1

I am guessing that when you say "bones crack" you are not actually talking about the bone itself cracking (ie. breaking a leg or arm), but the popping sound in the joint. For example, cracking your knuckles, wrists or shoulder? It has long been an old wives tale that cracking your knuckles would promote arthritis and was harmful to the joints. In reality, it is quite harmless so long as you do not hyper-extend the joint. The popping sound is actually caused by deposits of gas (usually nitrogen) in the joint. Where there is enough of the gas collected in the joint, it forms a bubble that when the joint is squeezed, the bubble pops! This breaks the gasses into smaller bubbles, some of them are small enough that the body can get rid of them and others remain, reform and a little while later you can crack your knuckles again.

It is entirely natural for gasses to collect in your joints and anyone that dives knows that this is exagerated when you go very deep under water. The pressure allows a more dense collection of nitrogen bubbles to collect in the joints without pain, but if you re-surface to quickly, the bubble expand rapidly causing immense pressure in the joints, more commonly known as the bends...Hope this helps...

Answer 2

Cracking joints is the prepare of manipulating one's joints such that it produces a pointy sound, likened to cracking (additionally likened to popping, etc.). to offer the sounds, many human beings will bend their palms or different joints into unusual positions, or manage them in strategies that are actually not often skilled in often used use. case in point, bending the palms appropriate back in the direction of the back of the hand, pulling them far off from the hand, or compressing a finger knuckle palmarly. in many early action photographs and subsequently parodied in lively cartoons, the gesture of cracking knuckles became linked with a "not person-friendly guy" image, exceedingly while observed by ability of the implicit or convey danger of violence. The actual mechanism is unknown, yet opportunities that have been stated incorporate: cavitation interior the joint – small cavities of partial vacuum kind interior the fluid then at as quickly as crumple, producing a pointy sound (hypothesis in a scientific magazine) the unexpected stretching of ligaments (hypothesis by ability of one reader of that magazine) launch of gas from the joints being adjusted (it is applicable to the popping which could take place in any joint which incorporate for the period of chiropractic manipulation) adhesions being broken, which merely ability that as 2 cartilage surfaces are pressed mutually, they kind adhesions, and while the joints are separated this makes the popping or cracking sound.

Answer 3

They will crack only if there is trauma to it

The joints crack and pop. Is that what you are asking?

Answer 4

a lot of times when your bones or joints pop it means that your joint is just slightly out of place or that there is just an air pocket in the joint.