There are extensive social and cultural differences between African Americans, Afro-Caribbeans and African immigrants. Scientists discovered distinctions among the three different ethnic classifications for Black Americans and compared them with whites for all four heart disease risk factors studied: high blood pressure, diabetes, excess weight and smoking. Researchers also accounted for socioeconomic factors and found that African immigrants were more likely than Afro-Caribbeans, African Americans and white Americans to be college educated. Overall, African immigrants had significantly lower risk factors for heart disease risk compared with Black Americans and Afro-Caribbeans. For related coverage, read “Another Reason for African Americans to Quit Smoking Right Now” and “A Majority of African Americans Are Stricken With Hypertension by Age 55.”