Acupuncture has been used in Chinese medicine for thousands of years to treat pain. But until recently, scientists couldn't figure out exactly how or why it worked. They theorized that perhaps it activated the body's natural painkillers.
Now researchers at the University of Michigan's Chronic Pain and Fatigue Research Center have uncovered a clue to at least one way that acupuncture works to help relieve pain . They found that acupuncture increased the binding availability of...


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