Heart Screen New York organizes free cardiovascular screening for adolescents and young adults. The goals of the screening are: 1. To detect cardiovascular conditions with the potential for sudden death in the young. 2. To reduce sudden cardiac death through early detection and appropriate medical interventions, activity modification, or withdrawal for athletic participation if recommended by a physician. 3. To provide a unique training opportunity for medical students, residents, fellows and practicing physicians to gain experience in cardiovascular screening and ECG interpretation. 4. To raise awareness and educate schools and communities about sudden cardiac arrest warning signs and symptoms, and the value of cardiac screening.