HARVARD GAZETTE: Research indicates that “real” acupuncture rewires the brain to produce long-term improvement, while “sham” acupuncture may produce temporary results by tapping into the placebo circuitry in the brain.
Read the whole article here: http://news.harvard.edu/gazette/story/2017/03/study-reveals-differences-in-the-effects-of-real-and-sham-acupuncture/