Christopher P. Cannon, MD, is an associate professor of medicine at Harvard Medical School in the cardiovascular division at Brigham and Women's Hospital in Boston. He is a senior investigator of the Thrombolysis in Myocardial Infarction (TIMI) Study Group, and over the past two decades has been the principal investigator for more than ten international clinical trials in the area of heart attacks and prevention. The trials include PROVE IT-TIMI 22, which showed that "lower is better" for cholesterol and changed international guidelines, and CLARITY-TIMI 28, which showed that giving heart attack patients clopidogrel (Plavix) can prevent future heart attacks. Heidi McIndoo, M.S., R.D., L.D.N., owns and operates Apple a Day Nutrition, a consulting company that provides individuals and groups a wide range of nutritional services--from nutritional counseling and meal planning to nutrient analysis of recipes and menus. She served as national media spokesperson for the American Dietetic Association and has written health and nutrition articles for numerous publications, including Fitness, Shape, and Self. She earned her BS in dietetics from the University of Connecticut and her MS in nutrition communications from Tufts University. She is the coauthor of The Complete Idiot's Guide to Low-Sodium Cooking, Second Edition.