Serum cholesterol, high-density lipoprotein (HDL) cholesterol and triglycerides of 85 year old home-living persons were compared to those of controls and of patients who had severe coronary artery disease (CAD) at an early age. Eighty-five-year-olds had higher serum HDL cholesterol than controls and patients with CAD. Patients with severe CAD had higher serum total cholesterol and serum triglycerides and lower HDL-cholesterol than other groups. When 85-year-old persons were divided into quintiles according to serum HDL cholesterol, women with highest HDL cholesterol had lowest mortality, men with lowest HDL cholesterol had highest mortality. We conclude that elevated HDL cholesterol is correlating with longevity and low HDL cholesterol with CAD at an early age.