The study is another in the tangled history of African Americans and blood pressure. According to WebMD, African Americans develop high blood pressure at younger ages than other groups in the United States. They are also more likely to develop complications from elevated blood pressure, including stroke, kidney disease, and blindness.
Though genetic factors play a role in high blood pressure, researchers have attributed environmental factors as well. Black people in the United States are more likely to be overweight than Blacks in other countries. This is largely considered to be an effect of racial discrimination in hiring practices and systemic economic inequality.