Green tea is considered to be a health drink, even though its a caffeinated beverage. That’s because it is a high source of polyphenols. These polyphenols are powerful anti-oxidants that can prevent cancer handily without harming healthy and normal cells. The antioxidants are also thought to help brain functioning and prevent brain damage. Additionally, it is thought that green tea can help aid weight loss and it is used for that purpose in China. Because green tea can combat bacteria, it may also help prevent tooth decay. So the next time you feel like drinking coffee or soda, you may want to brew some green tea instead.