Nearly thirty million Americans have been diagnosed with heart disease. If you’re among them, you may be glad to learn the American Heart Association has a high-tech way to help. It developed a free mobile app called My Cardiac Coach. It gives access to expert information; interactive lessons including how to ask your doctor about nutrition, exercise and medication; ways to track blood pressure, weight and cholesterol; tools for logging exercise and managing medicine; and connections to other survivors. Learn more at heart.org/mycardiaccoach.