We have been hearing that obesity is an epidemic across the nation. But what does an epidemic really look like?
The Center for Disease Control's web page Overweight and Obesity: Obesity Trends: U.S. Obesity Trends 1985–2005 includes a powerful powerpoint presentation (or pdf) that illustrates the growth of Body Mass Index (BMI) across time.
For a quick snapshot, here are a couple of images that show what an epidemic looks like. Notice how in the year 2000 they added a new higher category, and in 2005 they added two more.
Source: "Overweight and Obesity: Obesity Trends: U.S. Obesity Trends 1985–2005", U.S. Dept of Health and uman Services, Center for Disease Control, http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/index.htm; viewed March 10, 2007