Tens of millions more Americans now have high blood pressure. Almost half of all Americans -- 46% -- are now considered to be in the high blood pressure category based on new guidelines released Monday.
High blood pressure should be treated at 130/80 rather than 140/90, according to the new parameters set forth by the American Heart Association, the American College of Cardiology and nine other health professional organizations.
Practicing physicians and the public are "going to be a little bit shocked or taken aback by a diagnosis of Stage 1 hypertension with a blood pressure of 130/80, which historically has been considered a normal, well-controlled blood pressure," said Dr. William White, a professor in the cardiology center at the University of Connecticut School of Medicine.