Acupuncture is a minimally invasive technique for stimulating nerve-rich areas of the skin surface to affect tissues, glands, organs, and numerous physiological processes. Acupuncture is an ancient Chinese medical treatment that involves inserting needles into particular places on the skin to treat a variety of ailments. It is founded on the idea that a blockage or disturbance in the body's life energy, or "qi," can lead to health problems. Acupuncturists use hair-thin needles to restore qi flow, balance the body's energy, stimulate healing, and induce relaxation at particular acupuncture locations throughout the body. Each acupuncture needle causes a minor injury at the insertion site, which, while minor enough to cause little to no discomfort, is enough of a signal for the body to react. The immune system is stimulated, circulation is improved, wound healing occurs, and pain is reduced as a result of this response.