The HeartMath institute is pleased to announce the release of a free two-hour course on the science of heart rate variability. The course encapsulates 25 years of pioneering research by the Institute in this rapidly-expanding field, and is taught by Rollin McCraty PhD, director of research. This course is a must-see for those interested in heart rate variability, either at a beginning or advanced level. Insights you’ll gain will contribute significantly to your understanding of heart rate variability and the autonomic nervous system. Go to http://www.heartmath.org/hrv to view the course.