An Article of interest From our December Newsletter: Heart Rate Variability Improved with Chiropractic In the Journal of Upper Cervical Chiropractic Research, a study was published in May, documenting a positive change in Heart Rate Variability (HRV) as well as a variety of other symptoms in a series of three different patients. HRV is used to measure the variation in beats of the heart. … [Read more...] about Heart Rate Variability Improved with Chiropractic