A study done by the National Institutes of Health NIH showed that electro-acupuncture “inhibits osteoarthritis-induced pain by enhancing 5-HT2A/2C [serotonin] receptor activity.” Activation of this serotonin receptor produces powerful anti-inflammatory effects.
The article is from the Healthcare Medical Institute http://www.healthcmi.com/index.php/acupuncturist-news-online/437-acupuncturearthritispainserotonin
