Moxibustion involves the heating of acupuncture points with smoldering mugwort herb (known as moxa). Moxibustion stimulates circulation, counteracts cold and dampness in the body, and promotes the smooth flow of blood and qi. This warming procedure is even very relaxing. Moxibustion has been used throughout Asia for thousands of years. The burning of moxa is believed to expel cold and warm the meridians, which leads to smoother flow of blood and qi. In Western medicine, moxibustion has successfully been used to turn breech babies into a normal head-down position prior to childbirth. A landmark study published in the Journal of the American Medical Association in 1998 found that up to 75% of women suffering from breech presentations before childbirth had fetuses that rotated to the normal position after receiving moxibustion at an acupuncture point on the Bladder meridian. Other studies have shown that moxibustion increases the movement of the fetus in pregnant women, and may reduce the symptoms of heavy bleeding, menstrual pain, and menstrual cramps when used in conjunction with traditional acupuncture (Acupuncture Today). Moxa has a strong odor and you should alert your acupuncturist if you are sensitive to smells.