Ganoderma lucidum is a polyporaceae plant, and traditional Chinese medicine has long been regarded as a precious Chinese herbal medicine for nourishing and strengthening the body. Legend has it that ganoderma lucidum has the effect of bringing back the dead and living forever. A well-known fairy tale "The Legend of the White Snake" tells the story of the white snake stealing fairy grass to save Xu Xian. Two thousand years ago, Shennong in the Eastern Han Dynasty listed Ganoderma lucidum as the top grade in the Classic of Materia Medica, arguing that "long-term eating will keep you healthy and live forever". In the Compendium of Materia Medica compiled by Li Shizhen in Ming Dynasty, it is recorded that Ganoderma lucidum tastes bitter, flat and nontoxic, and has the functions of benefiting heart qi, promoting blood circulation, blocking heart, nourishing heart and tranquilizing mind, benefiting lung qi, nourishing liver qi, nourishing middle energizer, being intelligent, lustful, benefiting joints, strengthening bones and muscles, resolving phlegm and invigorating stomach. Ganoderma lucidum has remarkable effects on cancer, cerebral hemorrhage and heart disease, the three main causes of human death. Can be used for treating hepatitis, liver cirrhosis, nephritis, pyelonephritis, rheumatoid arthritis, chronic bronchitis, asthma, gastropathy, duodenal ulcer, cardiovascular and cerebrovascular diseases, myocarditis, neurasthenia, rhinitis, diabetes, prostatic hypertrophy, mountain sickness, palpitation, cold hands and feet, hypertension, eczema, cold blood stasis, urgency of urination, night sweats, sequelae of concussion, insomnia, hemorrhoids, etc. Ganoderma lucidum has a good effect on whitening and beautifying skin, eliminating facial freckles, spots, chloasma and acne and regulating endocrine disorders. Long-term consumption can remove impurities in human blood, lower cholesterol, promote blood circulation, treat menopausal diseases, improve human immunity and prevent Alzheimer's disease. Ganoderma lucidum is a medicinal fungus that can cure diseases and strengthen the body without disease. Has no side effect and dependence, and can be drunk by men, women and children. It is the most ideal natural medicine and health food for human beings. Chemical composition of Ganoderma lucidum: Ganoderma lucidum is very rich in effective components, and dozens of kinds have been separated at present, among which the following are the main ones. (1) Ganoderma lucidum polysaccharide Ganoderma lucidum polysaccharide is a kind of polysaccharide with spiral three-dimensional configuration. Its helical structure is mainly maintained by hydrogen bonds. It is a high molecular compound with molecular weight ranging from thousands to hundreds of thousands. Insoluble in high concentration ethanol, slightly soluble in low concentration ethanol and cold water, soluble in hot water. In Ganoderma lucidum, it exists in cells. (2) Ganoderma lucidum acid Ganoderma lucidum acid is a triterpenoid compound. Ganoderma lucidum acid has strong pharmacological activity, and has the functions of analgesia, sedation, inhibition of histamine release, detoxification, liver protection and poisoning tumor cells. It is one of the main effective components of Ganoderma lucidum. (3) Adenosine Adenosine is an active substance with nucleoside and purine as its basic structure. Ganoderma lucidum adenosine derivatives have strong effects of reducing blood viscosity, inhibiting platelet aggregation in vivo, increasing hemoglobin and glycerol diphosphate, improving oxygen supply capacity of blood, heart and brain, and accelerating blood circulation. Ganoderma lucidum glycoside is a kind of active substance with strong activity and one of the main effective components of Ganoderma lucidum. (4) Other effective components The effective components separated from Ganoderma lucidum include ergosterol, mannitol, furan, lactone, taurine, Ganoderma lucidum alkaloids A and B, uracil and uridine, adenine, adenine nucleoside, oleic acid, total alkaloids of Ganoderma lucidum, spore ether in Ganoderma lucidum spores and cellulose. The pharmacological effects of Ganoderma lucidum are as follows: (1) the effect of increasing superoxide dismutase. Ganoderma lucidum can increase superoxide dismutase, scavenge free radicals in vivo, reduce the content of malondialdehyde (MDA) in vivo, improve the fluidity and sealing degree of cell membrane, and protect bioactive substances such as cell membrane, organelles, nucleic acids and enzymes from being damaged by free radicals. The effects of improving superoxide dismutase are: 1, and the activity of superoxide dismutase (SOD) in cells is improved. Ganoderma lucidum can improve the effect of superoxide dismutase in vivo, and its effect is related to the dosage of Ganoderma lucidum. 2. Inhibit the generation of superoxide anion free radicals. 3. Inhibition of lipid peroxidation can lead to the destruction of cell membrane structure, reduce or lose the physiological activity of cell membrane, and reduce the active absorption capacity of cell membrane. Lipoprotein, the product of lipid peroxidation, will accumulate on the inner wall and epidermis of blood vessels, causing blood circulation disorder and senile plaque, reducing the level of lipid peroxidation in the body, which is of great significance to improving the health of the body, delaying aging and improving the function of the nervous system. (2) Anti-thrombosis and improvement of erythrocyte deformability. The experimental results show that Ganoderma lucidum has good antithrombotic effect. (3) Ganoderma lucidum can improve the ability of cells to synthesize DNA, RNA and protein. Ganoderma lucidum can improve the activity of DNA polymerase and the ability of liver, bone marrow and red blood cells to synthesize DNA, RNA and protein. (4) improve the immunity of the body. Ganoderma lucidum has a very good effect on improving immune function. Ganoderma lucidum can promote the proliferation of lymphocytes, improve the phagocytosis and lethality of macrophages, NK cells and T cells, significantly inhibit the sensitization of ovalbumin and tetanus toxoid, and promote the reaction of normal mice to sheep red blood cells (SRBC) and plaque-forming cells (PFC). Ganoderma lucidum can promote the proliferation of spleen lymphocytes induced by concanavalin A and lymphocyte transformation stimulated by homologous antigen in vitro. (5) Ganoderma lucidum protects liver and detoxifies. Ganoderma lucidum has a good effect on protecting the liver from chemicals and viruses. Ganoderma lucidum's prevention and treatment of hepatitis caused by hepatitis virus mainly depends on improving the immune function of the body, and Ganoderma lucidum's resistance to toxic chemicals mainly depends on improving the detoxification ability of the liver. (6) Ganoderma lucidum can improve the body's hypoxia tolerance, improve the blood oxygen supply capacity, improve the oxygen difference between muscles and veins, and reduce the oxygen consumption of the body at rest. Ganoderma lucidum extract can not only improve the hypoxia tolerance of brain, but also protect myocardial hypoxia. (7) Reduce blood viscosity, increase myocardial contractility, increase coronary blood flow and cardiac output, and improve heart rhythm. (8) Anti-tumor. Ganoderma lucidum can prevent tumor occurrence and inhibit tumor growth. (9) Sedative and analgesic effects (10) Other medicinal effects of Ganoderma lucidum