If you've been to a chiropractor in the past, you may have
noticed that your chiropractic procedure was associated with a popping sound.
This sound is actually quite normal and is created by the negative pressure
within the joint resulting in the release of nitrogen gas. In fact, this is what
occurs when cracking your knuckles. With certain chiropractic procedures delivered
by licensed doctors of chiropractic, this noise is completely normal. However,
there are many times when the popping sound isn't heard. New research performed
to evaluate neck pain and the presence of an audible "pop" heard immediately
following the chiropractic procedure indicates the lack of an audible "pop"
does not necessarily contribute to the reduction of pain or overall effect on
the nervous system. In other words, that audible "pop" is not required to get