Is green tea good for you

Green tea comes from the plant Camellia sinensis. It can be made to green, white, black, oolong, or pu erh tea. Green tea includes a high number of antioxidant polyphenols called catechins that may be used to fight the negative effects free radicals cause in the human body. An amino acid found almost exclusively in green tea, also called L-theanine can pass the blood brain barrier and interact with the brain directly. Green tea (and other teas) also contains caffeine, which has a stimulating effect on the CNS and also provides some medicinal activities towards the cardiovascular system. It may be the healthiest drink available.