Chiropractic is a system of wellness care that is of the philosophy that the body is fully equipped to heal itself of all diseases and afflictions, and has no need for drugs or surgery, except in the case of emergency trauma care. The only barrier to true health is mechanical, in the form of muscle tightness or bone-out of place interference with normal nerve impulses throughout the body.
The bone-out of place is less than a dislocation, often referred to as a "subluxation". The muscle tightness can take the form of trigger points, or shortening of the muscle in question, usually across a sensitive nerve pathway.
The chiropractor's job is to find these areas of subluxation, or trigger points, and eliminate them, through the "chiropractic adjustment".
Alternatively, To get an idea of the medical approach to health, and why the health care system is currently failing in this country, click below to watch a short video.