The jade therapeutic blanket in their home is mainly made by xiuyan jade. According to Compendium of Materia Medica, jade has the functions of "removing middle heat, relieving annoyance, helping voice and throat, nourishing hair, nourishing five internal organs, calming the heart and calming the nerves, dredging blood vessels and brightening eyes and ears". Our family just bought it not long ago, and it's working well now. We are observing it.