Separating each spinal vertebra is a disc. Its fibrous outer ring holds in a jelly-like material. Because of the way a disc attaches to the spinal bones above and below it, it can't actually "slip." However, a disc can bulge, tear, herniate, thin and collapse. But it can't slip.

Chiropractic works because your nervous system, consisting of your brain, spinal cord and all the nerves of your body, controls and regulates every cell, tissue, organ and system of your body. A chiropractor locates and reduces areas of nervous system compromise (usually along the spine) so your capacity to heal is restored. Chiropractic works by helping your body work as it was designed.