Obesity is a leading cause of death in the United States. According to the American Cancer Society, 572,000 Americans die of cancer each year and about one-third of these deaths are related to excess body weight, poor nutrition and/or lack of physical activity. America now tops the list of the 10 most obese countries in the world! This is an issue that affects both adults and children. Understanding what causes obesity and how to fight it are key to solving this growing problem.