Known as "gynecological regulator." It has the ability to reduce estrogen levels if they are too high and can increase them if they are too low. Dong quai is helpful after any injury or surgery to replenish red blood cells and increase blood volume. It help iron deficiency and anemia, the cobalt in it is thought to increase the hemoglobin content of the blood. It boosts male fertility, the Ferulic acid which is an antioxidant found in dong quai, has been shown to improve sperm quality. It’s an antispasmodic that eases cramps and other symptoms of PMS. It dilates the blood vessels to increase flow during monthly cleansing and helps replenish blood after ones period has ended. Effective at reducing anxiety and could be useful to help in combating stress and reduce the severity of mood swings. It has a calming effect on the nervous system and promotes relaxation.