Clyde W. Yancy, a cardiologist and medical director of the Baylor Heart and Vascular Institute in Dallas, became national president of the American Heart Association on July 1. He recently spoke with Science News writer Nathan Seppa. Dramatic gains in cardiovascular care in the United States risk being negated by an epidemic of obesity, diabetes and other conditions. How do you see us navigating these crosscurrents? This is the dichotomy of influences under which we currently exist in the cardiovascular community. Heart disease and stroke continue to be leading causes of death in this cou... (p. 32)