Mayo Clinic
Mayo Clinic:target Heart Rate Calculator
Check your target heart rate for safe and effective exercise according to your age and health status in this interactive heart rate calculator
Other
Med Help: The World's Largest Health Community
Med Help is designed to help "patients find the highest quality medical information in the world today." It includes an eNewsletter, news from The Cleveland Clinic Heart Center and ABC TV, and a list of articles which can be searched by...
Curated OER
Kids Health: Arrhythmias
A wealth of information on arrhythmias. Find out about the kinds of arrhythmias, causes, and treatments.