A blood component called glycated LDL -- a form of low-density lipoprotein, the "bad" cholesterol, with a sugar molecule attached -- is known to be higher in diabetics than non-diabetics, and extensive research has shown that diabetics are at increased risk of a heart attack. Now, for the first time, a new study that followed a cohort of elderly people in southern Italy found that glycated LDL levels increase the risk of heart attack in both diabetics and persons without diabetes.