New Blood Pressure Guidelines Explained

Published: Jan. 23, 2018, 4:44 p.m.

New blood pressure guidelines last fall dropped the level of diagnosing high blood pressure from 140/90 to 130/80. ABC News chief medical correspondent Dr. Jennifer Ashton says that the mistaken impression was that this would cause millions to be prescribed medication to treat high blood pressure, but Dr. Ashton says that is definitely not true and she explains why.