Our country is the earliest country in the world to cultivate and drink tea. Tea was introduced to Japan during the Tang Dynasty, and was exported to Europe by the 15th century; afterwards, other countries around the world began to grow it successively. Tea, as a beverage for health preservation, disease prevention and treatment, has been widely recognized worldwide. As the famous pharmacologist of the Tang Dynasty, Chen Cangqi, said: "Tea is the remedy for all diseases." In the long-term practice of drinking tea, the Chinese people have summarized eight therapeutic effects of tea...