Moxibustion is a traditional Chinese medicine therapy which consists of burning dried mugwort on particular points on the body. Moxibustion can use it indirectly, with acupuncture needles or burned directly on the patient's skin to warm regions and meridian point. This stimulates circulation through the points and in turn creates a smoother flow of blood and qi. Some believe it can treat conditions associated with the "cold" or "yang deficiencies" in Chinese Medicine. It is claimed that moxibustion mitigates against cold and dampness in the body, and can serve to turn breech babies. Moxibustion can be used in the treatment of chronic problems, "deficient conditions" (weakness), and gerontology. This treatment is used in combination with acupuncture needles made of various materials depending on the direction of qi flow they wish to stimulate.