No, wormwood fiber mattress is effective, not IQ tax, and has a good reputation. It is beneficial to the body, including regulating menstruation, relieving dysmenorrhea, warming uterus and dispelling cold, and refreshing. Folium Artemisiae Argyi, a perennial herb of Artemisia in Compositae, has a strong fragrance. The taproot is obvious, slightly thicker and longer, with a diameter of 1.5 cm and many lateral roots.