Abusive parents. --------------------------------------------------------------------------------- The above is not my answer...! Youngsters are a lot more flexible than adults, and while they are bending and twisting they can flex to the point that small bubbles of nitrogen will suddenly form in the vacuum produced by stretching of the joints, This "cracking" is the same thing that occurs when you "pop" your knuckles! They are not injuring themselves by doing this... Nothing to worry about!
cause it sounds funny
A childs tooth
Stepping in a crack on the sidewalk is a superstition heard by many people around the world. If one steps on a crack on the side walk, it would break their mother's back.
When i crack my back i sit on the ground or a chair or something and just twist to the left and right, it cracks. You could also get someone to crack your back by them walking and pushing on your back.
Yes, it can kill because it will crack the spine and the spine is the back bone of the body and if the back bone is broken then it is inevitable that the person will die
It is a mirror
A back, crack and sack is a beauty treatment for men in which hair is removed from the back, from between the buttocks, and from the scrotum.
It isn't good... But cracking knuckles and other joints doesnt cause any damage. However if you crack your neck and back, there is a possibility of pinching a nerve or straining a muscle so be careful.
i dont know but when you sit down on a hard chair it will crack your screen if its in your back pocket.
No. But as a word of caution, I would not recommend cracking your back unless it happens naturually by doing normal and gentle stretching.
Your back and an egg.
A blow to the head would cause swelling.