For all who doubt the importance of living around your people — a new study may make you reconsider. Among African-Americans, those living in a county with an ethnic density of 50% or more (that is, where half or more of the population shared the same background) were 46% less likely to report doctor-diagnosed heart disease and 77% less likely to report cancer than those who lived in an ethnic density of less than 25%. (more…)
