us about tea now. doc. sorry to interrupt you while you're drinking. >> david has made a great point on the show about coffee. four cups of coffee a day. i'm talking about tea today because i changed my lifestyle to some extent since i have been over here, and i have been having afternoon tea and i find it's better on my stomach, and i read the clinic of american nutrition has 11 studies involving tea, and they need better studies. they need the randomized trials we like. but very good for bone health. seems to improve behavior and concentration. decreases risks of certain cancers like that in the gi tract and maybe even the advancing of prostate cancer. it's overall very, very good for you and has a lot of health benefits and it's overall in my field, i notice there are some studies that show it decreases the risk of heart disease. and three cups a day. we say four cups of coffee,