From 2003 to 2013, the death rate from coronary heart disease fell about 38 percent, according to the American Heart Association citing data from the Centers for Disease Control and Prevention. The National Heart, Lung and Blood Institute, the primary federal agency that funds heart research, says this decline has been spurred by better control of cholesterol and blood pressure, reduced smoking rates, improved medical treatments — and faster care of people in the throes of a heart attack. "It may not be long before cardiovascular disease is no longer the leading cause of death" in the United States, said Dr. Michael Lauer, the director of the Division of Cardiovascular Sciences at the National Heart, Lung and Blood Institute.