What is the ‘popping or cracking’ sound I hear?
There is a vacuum that exists in most joints in the body and during an adjustment, this pressure is overcome and small bubbles of gas are created in the synovial fluid between the joints. These bubbles can cause the audible ‘pop’ that can often accompany an adjustment, similar to the pop you hear when you take the cork out of a champagne bottle. This sound is not caused by bones grating against each other or by something being torn. The effect of this happening is to help normalise the functions of the joints and muscles and to ease or remove pain. In essence joints are then resting comfortably on a ‘bed of bubbles’.
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