Is green tea really good ? is it better than coffee ? and does it help being awake (like coffee in moderation ) ? what are its benefits ?

Both have caffeine: Tea is derived from camellia sinensis tree. The leaves contain antioxidant polyphenols. Studies show that the polyphenols in green tea have an anti-carcinogenic effect as well as leading to a reduced heart disease death rate. The linus pauling institute reported a study that suggested that green tea can assist with glycemic control. Catechins in the tea may ^ thermogenesis. Tea can ^ wakefullness.