Today on Health and Longevity, Dr. John Westerdahl's featured guests are,  Caldwell Esselstyn, Jr., M.D., Heart Disease Researcher – Author of Prevent and Reverse Heart Disease, and  Gene Spiller, Ph.D.,  Nutritional Researcher and Health Scientist. Dr. Esselstyn talks about how to prevent, treat and even reverse heart disease through a plant-based diet. Dr. Spiller shares his research about the powerful antioxidant properties of sundried raisin and the health benefits of plant foods.  He talks about new research on Astaxanthin, a natural antioxidant found in a specific algae and its potential role in human health.