Dating back more than 4,000 years, Chinese diet green tea has been long revered as a tasty drink that can ward off diseases and improve one's well-being. Since its first recorded use during the time of Emperor Shen Nung, the link between Chinese diet green tea and good health has never been severed. It's been used as treatment for everything from headaches to depression. Today, various health benefits of green tea are constantly being reported, and many scientists are now focusing their attention on the simple, yet elegantly profound beverage that is green tea.