Pharmacology Action: Reishi mushroom extract is used in the treatment of a wide variety of illnesses, including HIV/AIDS, diabetes, lung and liver disorders, allergies, stress and coronary disorders.Reishi mushroom contains a high amount of polysaccharides which are essential for proper functioning of the immune system. Reishi Mushroom is used as a tonic and a sedative. According to Traditional Chinese Medicine, reishi was thought to "mend the heart." Reishi is a cardio tonic that supports normal blood and oxygen flow to the heart. Reishi mushroom extracts have been shown to exert many beneficial effects which seems to support Reishi historical use as an "adaptagen". An adaptagen is defined as a substance which increases the resistance to stress and improves the general tone of the body and mind. Reishi mushroom has been used to treat:Normal sleep;High altitude stress;Cardiac and liver tonic.