Heart disease is the No. 1 cause of death in the United States, killing nearly one million people annually. Join Cardiologist Dr. Tarek Abou-Ghazala from the Virginia Cardiovascular Group to learn how you can improve your cardiovascular health, how to recognize a heart attack, and how heart failure is diagnosed and treated. Cosponsored by Reston Hospital Center. Register online at www.fairfaxcounty.gov/library or call 703-689-2700. Adults.