Cordyceps sinensis is not everything, so be careful when you feed it to the elderly. Experts remind that, especially for some people with chronic diseases, it is not a good thing to take Chinese caterpillar fungus medicated diet through hearsay. According to experts, Cordyceps sinensis is a tonic. Chinese medicine believes that it can nourish kidney and moisten lung, stop bleeding and resolve phlegm. Can be used for treating impotence, soreness of waist and knees caused by kidney deficiency, chronic cough and asthma caused by deficiency of both lung and kidney, tuberculosis, fatigue cough and hemoptysis caused by deficiency of lung yin. However, due to its mild efficacy, it is essentially different from the "aphrodisiac" of Cordyceps touted by some dealers. Moreover, "Cordyceps sinensis can only be supplemented, and don't expect to have an immediate effect after eating it." Professor Chang believes that whether as a treatment or health care, Cordyceps sinensis needs long-term consumption to have an effect, and it is difficult to say that it has an effect in a short time, and it must be within the above adaptation range. Not everyone can eat Cordyceps sinensis for health care.