Research from the Centers for Disease Control And Prevention examining mortality in the United States over the past 75 years found that the risk of dying dropped 60 percent between 1935 and 2010. The risk of death dropped for all age groups but the greatest decline was found in the very young, with death rates between the ages of one and four dropping 94 percent. The death rate for people over the age of 85 was down 38 percent. Heart Disease, cancer, and stroke remained among the top five causes of death in each year between 1935 and 2010. But the report cites significant progress in prevention, diagnosis, and treatment of cardiovascular diseases as the reason for a 41 percent decline in age-adjusted mortality in the period from 1969 and 2010.