it can detoxify water, oral cavity and intestines and make water hygiene enough for drinking. For another thing, it contains a vast of nutrients and medicative components. By some sense it can be as one of medical herbs. Thus, it can have physiological and medical effect on human body. Therefore, tea can be helpful to improve people's health condition. Take my hometown for example,the local people who drink tea as something like eating relatively have lower probability of disease than those who don’t drink. Maybe the taste of tea is not very well like coffee for some people,but it is not bad,too.If you try to drink a cup of green tea,you will find there is a little sweet taste after a second.