It can be taken and is good for the elderly. The elderly suffer from emphysema and their lung qi is weak. Cordyceps sinensis is suitable for the elderly's condition. Cordyceps sinensis, nature, flavor and meridian tropism, are sweet and flat. Returns to the lung and kidney meridians. Functions and Indications: Nourishes the lungs and kidneys, stops bleeding and resolves phlegm. It is used for chronic cough, shortness of breath, labored cough and hemoptysis, impotence and spermatorrhea, and soreness in the waist and knees. Functions of Cordyceps Sinensis: 1. Pharmacological effects related to its main functions (l) Sex hormone-like effects (2) Regulating the body’s immune function (3) Relieving asthma (4) Protecting kidney function (5) Enhancing hematopoietic function (6) Delaying aging 2. Other pharmacological effects (l) Effect on the digestive system (2) Inhibitory effect on organ transplant rejection (3) Inhibitory effect on lupus erythematosus (4) Lowering blood sugar (5) Anti-tumor effect. To sum up, the pharmacological effects related to the efficacy of Cordyceps sinensis in nourishing the lungs and nourishing the kidneys include sex hormone-like effects, regulating the body's immune function, relieving asthma, protecting kidney function, enhancing hematopoietic function, and delaying aging. Cordyceps sinensis also has liver protection, inhibits organ transplant rejection, inhibits lupus erythematosus, lowers blood sugar, and has anti-tumor effects.