When these vertebrae are misaligned, it can have an overall systemic effect from muscular to the central nervous system. Without proper alignment and flow of all nerves and systems in the body from the brain, we can't function at our peak.
An adjustment is made by Dr. Thornquist utilizing his hands to a vertebrae to restore the misalignment. This happens with a quick movement and is most often without discomfort. You may hear a noise that sounds like you're cracking your knuckles referred to as joint cavitation. That noise is the release of gases such as oxygen and nitrogen from the joint.
Overall, adjustments are an excellent way to keep the body functioning at its highest level. When the body is in alignment, the body is able to respond and perform as it was designed to.