Chiropractic is a health care profession that focuses on disorders of the musculoskeletal system and the nervous system, and the effects of these disorders on general health.
There have been research studies showing the multitude of benefits of spinal manipulation for certain conditions, and along with the studies comes many opinions on why chiropractic therapy works. In one sense, it does not matter why it works, although knowing the exact mechanisms would help allow us to determine the best candidates for chiropractic adjustments.
The neurological wiring of the nervous system is affected by chiropractic adjustments due to the relationship of the wiring of the joint and the central nervous system. It is like a house on a circuit breaker. If all of your kitchen appliances are wired together, and when one overloads the system, the others in the system will fail as well.
This is a very simplistic analogy, and if you want to know more about the philosophy and what science has uncovered of the chiropractic adjustment, I would be happy to have a personal conversation with you.