The Center for Disease Control reports that many Americans aren’t in good health. CDC epidemiologist Greta Kilmer found “risky behaviors” to be the leading cause in the declining health of Americans, according to the New York Times. Recent reports show 36.5 percent of Americans to be overweight, 28.5 percent of adults over 20 are obese, while 20 percent smoke cigarettes. Only 22.8 percent of people reported physical activity for the month and 20.1 percent of the population does not always wear a seatbelt.