The audible noise that you hear when you adjust your spine or your extremities comes from a gas release between the joints. A natural “suction or vacuum” is created between all joints when they shear out of their natural alignment and compress together. Then you get adjusted you gap the joint, releasing the suction, and you hear and feel the “pop”.

There are correct ways to adjust the spine and the extremities and incorrect ways to manipulate these areas. Leave the work to be done by a trusted Chiropractor. In other words, “Don’t try this at home kids,” unless instructed by your Chiropractor.