People who drank tea regularly had lower blood pressure than those who did not

"blood pressure measurements were lower among the tea drinkers. The researchers calculated that the odds of developing hypertension were cut almost in half among those who drank one small cup a day, and by about two-thirds among those who drank 20 ounces or more daily. There was no difference between those who drank green and black tea."

New York Times, July 27, 2004