Acupuncture has unique effects with a long history. There are blood vessels, nerves and other tissue structures under the head and neck acupoints. Besides magic clinical treatment, dangerous always happen during highly improper needle accidents, even die. That is why those acupoints are called dangerous head and neck acupoints. Head and neck danger acupuncture double-blind test and the effect of the acupuncture and moxibustion mechanism is one of the research focus have not yet been conquered. It is also a ...