Plants and People
Drinking tea has been part of traditional Chinese culture for more than 4000 years. Noone really knows when tea was first brewed, and most stories are more of a myth than reality. It is said that a Chinese herbalist doctor, Sheng Nong, was boiling water under a tea tree and the leaves fell into the boiling water. After drinking the tea, he put it on his list of medicinal and after finding the benefits of tea for the human body, he put it on his list of medicinal herbs. The consumption of tea was introduced to the United States by Europe as part of a tea trade. Chinese immigrants who immigrated to the United Stated started serving tea in their restaurants before 1945.
Most teas, such as green, oolong, and black tea come from the leave of the Camellia sinesis plant. The difference between green tea and the rest of the teas is the way it is processed. Green tea is steamed, which prevents the epigallocatechin gallate medicinal compound from being oxidized. Black and oolong tea leaves come from fermented leaves, which washes out the medicinal compounds and making those teas less effective in fighting diseases. According to recent research, drinking tea, especially green tea can not only refresh your energy, but calm your temper too.
In addition, green tea has good effects on curing heart disease. A number of researchers have found that flavonoids in green tea can lower the risk of heart disease and decrease the number of people death from heart disease, because flavonoids prohibit the oxidation of low-density lipoprotein which causes atherosclerosis and inhibits the formation of blood clots. They recruited 1900 patients who have heart disease and divided them into three groups: non-drinker, moderate drinker (less than 14 cup per week), and heavy drinker (14 or more cup per week). During the next 3.8 years, 313 patients died, among whom 75 percent...