Acupuncture is a health care system used to treat disease, prevent illness and improve well-being. It is effective for physical, psychological and emotional problems. Acupuncture originated in China more than 5,000 years ago and, due to its proven effectiveness, has been embraced throughout the world. Hair-thin sterile needles are placed into the skin. The art and science of acupuncture involves the choice of points, the direction and depth of insertion, and the subtle manipulation of the needle in the patient's body. All of these factors determine the stimulus the patient will feel.