At the 9th International Conference on Spinal Manipulation held in Toronto, Canada in 2002, an investigative team headed by Ray Hayek, Ph.D. found that, "spinal manipulation patients experienced significant improvement, including increases of IgA and decreases of cortisol, indicating that chiropractic treatment helps increase immunological capacities.
Hayek R. Spinal manipulation may benefit asthma patients. The Chiropratic Resource Organization (online release).
