Chiropractic services for Medicare beneficiaries (those older than 65 years) with spine conditions may protect against 1-year declines in functional and self-rated health, suggest findings from a recent study funded by NCCIH (formerly NCCAM). Analysis of patient records also showed that in this sample about 35 percent of Medicare beneficiaries with spine conditions used chiropractic services. The study was published in the Journal of Manipulative and Physiological Therapeutics.