The brain is the most vital organ in your body, and it has the best armor to protect it--your skull. Other internal organs are protected by ribs and bones, but nothing compares to the protection provided by the skull and subsequently, the spine. As nerves travel out of the skull they are protected by the spine, a bony structure made of 7 neck bones, 12 midback bones, 5 lumbar bones and a sacrum/tailbone at the end. Each one of these individual bones are called vertebrae, and when an area of the spine, nerve bundle, or a small joint between these two bones becomes misaligned, rotated, stressed, or carries high muscle tension, that is called a subluxation. So, a subluxation is a little less than a dislocation, but a vertebral subluxation occurs at the spinal joints and affects the surrounding nerves that it protects, whether it slows down the function of the nerves, or simply irritates the surrounding area. It creates a weaker signal between the body and the brain.