Lower income means poorer health in middle age in both countries, but the U.S. has a much bigger difference in health between the top and bottom of the income ladder.

A highly anticipated clinical trial found no advantage to an invasive strategy for patients with stable coronary artery disease.

When most people hear “wearable technology,” they think of fitness trackers and enhanced glasses. The total artificial heart works on a higher level — allowing heart patients independence as they wait for a heart transplant.