In China and other parts of Asia, G. lucidum is used for many aging -related diseases, such as coronary heart disease, chronic bronchitis, hypertension, and cancer (Shen& Zhang, 1987), and also as a diuretic, laxative , sedative, and tonic (Liu and Bau, 1980).
In China, numerous preparations are made for daily use to promote health, inducing sound sleep and increasing resistance to infections and heart disease, and are also recommended for a wide range of ailments such as neurasthenia, chronic bronchitis, and coronary heart disease (Yand & Jong, 1989).
The Japanese government has officially listed Reishi as an adjunct herb for cancer (Willard,1990). Preliminary clinical reports and practitioner experience seems to indicate that its immunostimulating polysaccharides may make it useful for people who are HIV positive, as well as for those who have Epstein Barr Virus (EBV), an infectious virus that causes mononucleosis (Dharmandanda,1988).
from "Herbal Healing for Women" , Rosemary Gladstar, Fireside Press, 1993