Johnny and Sally both attend the same private high school in Chicago. But when the final bell rings, Johnny goes home to the predominantly African-American East Garfield Park community on the west side of the city. Sally usually takes the train back home to Lincoln Park, a predominantly white area on the north side of town.

Both sets of parents make the same total household income and agree that they give their kids the same opportunities in life. But while they’re seemingly awarded the same opportunities, the reality is that one of these fictitious characters is expected to die 12 years earlier than the other, simply because of where he lives.

A recent study shows that the differences in neighborhood conditions strongly predict who will be healthy, who will be sick, and who will live longer, independent of income. The Washington, D.C.-based Joint Center for Political and Economic Study released Thursday a report that examines how social and economic conditions in Cook County are linked to poor health outcomes.

Read more at The Grio.