Researchers in the Department of Anesthesiology and Intensive Care, Ankara Training and Research Hospital in Turkey, have found that a single session of acupuncture using one traditionally calming acupuncture point, can reduce preoperative anxiety in adult surgical patients. Fifty-two patients were randomly assigned to receive either acupuncture at the point Yintang, located on the forehead, or they were needled at a sham point. Anxiety levels decreased significantly in the treatment group, whilst no change was observed in the sham group.
(Acupuncture on Yintang Point Decreases Preoperative Anxiety. Journal of Alternative & Complementary Medicine, 7 May 2013.)