The Atlantic is out with a new national poll that shows that only a tiny sliver of the American population considers themselves unhealthy. The vast majority—90 percent—say they're in "very good" or "somewhat good" health. One percent, meanwhile, were unsure whether they were in good or bad health.

This flies a bit in the face of what public health research tells us about how healthy Americans are. More than one-third are obese, according to the most recent Centers for Disease Control numbers. About 10 percent of Americans live with a chronic condition, like diabetes or high blood pressure. This data suggests there's some space between how healthy we think we are, and how healthy we actually are.