I often hear patients say that they are taking Cordyceps, and its price per kilogram is often more than 100,000 yuan or even hundreds of thousands of yuan, which often discourages people. As a traditional tonic herb, Cordyceps is neither a worm nor a grass. It is a complex of the parasitic cysts and larval bodies of the fungus Cordyceps of the family Erigeridae on the larvae of insects of the family Batrachidae. The main components of Cordyceps include cordycepic acid, cordycepin, amino acids, alkaloids, vitamins, polysaccharides and minerals. Its in vitro extract has a clear effect of inhibiting and killing tumor cells, and cordycepin is the main component of the anti-tumor effect. According to Chinese medicine, Cordyceps sinensis is sweet and warm in nature, and belongs to the lung and kidney meridians, with the function of tonifying deficiency, benefiting essence, and calming asthma, stopping bleeding and resolving phlegm. Cordyceps has a high medicinal value, with the characteristics of both yin and yang tonic, especially good for the lungs and kidneys, the medicinal properties are relatively calm, except for pregnant women, colds, actual heat, etc., the majority of the general population can take, and all kinds of year round can be taken, the best in winter. The traditional way to take it is to decoct it and take it internally. It can be put into pills or pans, or grinded and eaten, or it can be made into wine, soup or porridge. It is important to emphasize that no matter which method is used, it should be taken with dregs to ensure effective absorption to the greatest extent. Besides kidney cancer patients, lung cancer and many patients with chronic diseases, such as renal insufficiency, emphysema and pulmonary fibrosis, are also suitable for taking Cordyceps.