The scope of chiropractic is as broad as the scope of influence of the human nervous system. This landmark study was a randomized, controlled trial of hypertensive patients. Those in the intervention group received a form of upper cervical chiropractic care. The authors wrote, “We conclude that restoration of Atlas alignment is associated with marked and sustained reductions in BP similar to the use of two-drug combination therapy.” This study received extensive positive exposure in the media.

Bakris G, Dickholtz M Sr, Meyer PM, Kravitz G, Avery E, Miller M, Brown J, Woodfield C, Bell B: Atlas vertebra realignment and achievement of arterial pressure goal in hypertensive patients: a pilot study. J Hum Hypertens. 2007 May;21(5):347-52. Epub 2007 Mar 2.

http://www.ncbi.nlm.nih.gov/pubmed/?term=dickholtz+hypertension