Banks, Muriel and Smith (2010);Banks, Berkman, and Smith, 2011). Based on self-reported prevalence of seven important illnesses (diabetes, heart attack, hypertension, heart disease, cancer, diseases of the lung, and stroke), Americans were much less healthy than their English counterparts. These differences were large at all points of the SES distribution. Biological markers of disease showed similar health disparities between Americans and the English, suggesting that these large health differences were not a result of differential reporting of illne.