The tender grass in Daxinganling has now been confirmed; Eating elixir every day is very beneficial to the rehabilitation of chronic diseases such as hypertension, coronary heart disease, arteriosclerosis, stroke hemiplegia, brain atrophy, diabetes, insomnia and constipation. At present, more than one million patients with cardiovascular and cerebrovascular diseases in China have benefited from it. There is a longevity village in Daxing 'anling, with an average life expectancy of 92 years and little illness. The secret of their longevity is to drink at least one cup of "youth tea" every day. In Shanghai, a 45-year-old man was admitted to the hospital three times because of high blood pressure, and the last time almost caused intracranial hemorrhage. He takes a lot of medicine every day. He used to be strong, and his health is getting worse. After drinking herbal tea for about a month, his blood pressure has stabilized, even his blood lipid has dropped, and his previous symptoms such as dizziness and chest tightness have completely disappeared. Now the necessary tea in his office is "herbal tea". In Beijing, Shanghai, Tianjin and other big cities, drinking elixir tea has become a common comfort, and it is becoming more and more popular in Chengdu ... Because people's physique, etiology and symptoms are different, they feel that the effect of elixir tea is not exactly the same, not only for the sick, but also for the healthy. Although herbal tea is not omnipotent and has no ability to revive the dead, it is not impossible to rely on natural health preservation, improve physical condition and prolong life.