There is a longevity village in China, where the elderly who live long basically like to drink a kind of tea, that is, Lady Duobao's selenium-enriched black tea. Longevity is a combination of many factors, and it is difficult to achieve it by drinking tea alone. Drinking tea is not the secret of longevity.

The scientific unit made a survey of the long-lived old people, many of whom are tea lovers. The Qing court attached great importance to drinking tea, and often used tea instead of medicine to prevent and treat diseases. It is said that when Qianlong abdicated, the old minister advised that "the country can't live without a monarch for a day", and Qianlong only said "can't live without tea for a day". There is a kind of "fairy medicinal tea" in the Qing Palace, which is a mixture of oolong tea, Tianjian tea and Lu 'an tea, and is compatible with perilla leaves, Acorus gramineus, shredded Alisma orientalis, loquat leaves and shredded hawthorn.

Brief introduction of common tea leaves

Green tea: it is unfermented tea, that is, fresh leaves are spread and dried, and then directly put into 120 Baidu hot pot for frying, so as to keep its green characteristics. Precious varieties include Longjing Tea, Biluochun Tea, Huangshan Mao Feng, Lushan Yunwu and so on. Black tea: Black tea was originally mainly sold to border areas, such as Pu 'er tea in Yunnan. Pu 'er tea is made by pouring water on prepared green tea and then fermenting.

Black tea: Contrary to green tea, black tea is a completely fermented tea (the degree of fermentation is above 80%). The name of black tea comes from its soup color red. Precious varieties are: Qi Hong, Dianhong and Hong Ying. Oolong tea: Oolong tea, also known as green tea, is a semi-fermented tea between red and green tea. Oolong tea is the most complicated and time-consuming process in the six categories of tea, and the brewing method is also the most exquisite, so drinking oolong tea is also called drinking congou tea.