Efficacy and health care function of Cordyceps sinensis: 1, which can tonify deficiency. Can be used for treating asthenia caused by strain and qi deficiency after illness. Because it contains a variety of amino acids, it is good for the human body. Experiments show that it has the function of enhancing immunity. 2. It can tonify heart and kidney and treat insomnia caused by deficiency of heart and kidney. Pharmacological experiments have proved that Cordyceps sinensis has sedative and hypnotic effects and is effective for neurasthenia. Lipoprotein is related to its function. 3. It can tonify lung and kidney, relieve cough and treat cough caused by lung deficiency or lung and kidney deficiency. Pharmacological tests have proved that it has the functions of anti-tuberculosis, anti-virus and bronchiectasis. 4. It can tonify kidney and replenish essence, and treat impotence, B essence, backache and paint. Suggestion: It can be used for chronic cough, asthma and expectoration caused by lung deficiency or lung and kidney deficiency. It can tonify lung and kidney, relieve asthma and stop bleeding. For asthma, cough and shortness of breath, it is often used with Ginseng, Walnut Kernel and Gecko. In addition, after illness, physical weakness disappears, sweating and chills. Can be stewed with duck, chicken, pork, etc. It has the effect of supplementing deficiency and helping the weak. For the complicated Cordyceps specialty stores in the market, it is difficult for consumers to distinguish the true and false Cordyceps from the shape, color and consumer branches: Cordyceps is like a silkworm, with only one "grass head" and few branches. The grass head is thicker at the base and thinner at the end, with a length of 0.1~ 4cm. There are eight pairs of "worms" with silkworm tails, the length of which is generally1.6 ~ 4cm, most of which are1.6 ~1.9cm, and Cordyceps between 5.6 ~ 6.5cm is rare. Cordyceps sinensis has rough surface and obvious ring pattern, and the dried Cordyceps sinensis is fragile and easy to break. After the cordyceps sinensis is broken, there are hollow or light gray pony hoof prints on the cross section. Most of the pruning shapes of Cordyceps sinensis are slender or slightly curved. Grass color: Cordyceps sinensis is yellow-brown in appearance and yellow-red in head. "Grass head" is mostly black, slender and flat in section. Cordyceps sinensis should be yellow and clean, bright in color, full and plump, yellow and white in cross section, not hollow, short in base, free from mildew and impurities. Grass smell: Cordyceps sinensis is sealed and opened, with a strong smell. In addition, experts pointed out that there are more than 300 kinds of Cordyceps sinensis in the world, and about 60 kinds are from China. However, only China Cordyceps sinensis infected with bat moth larvae has medicinal value, which is only distributed in the alpine meadow on the Qinghai-Tibet Plateau and its marginal areas in China. The others are not authentic Cordyceps sinensis. Some people use wild Cordyceps sinensis and Xinjiang Cordyceps sinensis from Hunan, Guangxi, Jiangxi and Anhui as Cordyceps sinensis. Among some fake Cordyceps sinensis, the color of Cordyceps sinensis is pale, and the four legs in the middle are not prominent. Symptoms such as dizziness and vomiting will appear after taking it; Cordyceps Qiongshan, produced in Sichuan, has no efficacy. Cordyceps militaris is produced in Yunnan, Jilin, Hebei, Shaanxi and other provinces. Although it is also called Cordyceps militaris, it is different from Cordyceps sinensis.