Green tea contains anti-oxidants, so its elexlcent for in that it cuts cancer risks, its elexlcent for your skin, steadies your blood pressure, prevents alzheimers and lets you stay younger. It will even make you immortal (just joking).But, green tea contains caffeine, so too much green tea will probably prevent you from sleeping at night.As for weed smoking, pot contains over 400 chemicals (most of which are harmful). Too much weed will eventually give you heart failure, memory loss, and cancer (from all that smoke going into your lungs).