Green tea is used to prevent and treat cancer. It also raises the body’s metabolism and increases the oxidation of fat. It reduces the risk of heart diseases and heart attacks by reducing the risk of blood clots. By drinking green tea regularly, cavities can be prevented by killing bacteria that cause dental plaque. It is relaxing and relieves stress. It causes weight loss in obese people. Green tea is also useful in curing a number of fungal, bacterial and even viral infections (such as the common cold).