Decoding an Ancient Therapy, High Tech Tools Show How Acupuncture Works in Treating Arthritis, Back Pain & Other Ills -by Melinda Beck, Wall Street Journal

March 22, 2010 -​ ...As fanciful as that seems, acupuncture does have real effects on the human body, which scientists are documenting using high-tech tools. Neuroimaging studies show that it seems to calm areas of the brain that register pain and activate those involved in rest and recuperation. Doppler ultrasound shows that acupuncture increases blood flow in treated areas. Thermal imaging shows that it can make inflammation subside...Studies in the early 1980s found that acupuncture works in part by stimulating the release of endorphins, the body's natural feel-good chemicals, much like vigorous exercise does. Now, a growing body of research suggests that it may have several mechanisms of action. Those include stimulating blood flow and tissue repair at the needle sites and sending nerve signals to the brain that regulate the perception of pain and reboot the autonomic nervous system, which governs unconscious functions such as heart beat, respiration and digestion, according to Alejandro Elorriaga, director of the medical acupuncture program at McMaster University in Ontario, which teaches a contemporary version to physicians...Read the rest at http://online.wsj.com/article/SB10001424052748704841304575137872667749264.html#dumm