“Normal” blood glucose and coronary risk
This is another nice editorial outlining current concepts in diabetes, heart disease and aging. When blood glucose levels are high enough, they attach themselves to proteins (a process called glycosylation). This damages and irreversibly alters the proteins. Many consider this glycosylation of proteins one of the hallmarks of aging. The common blood test Hb1Ac (glycosylated hemoglobin) checks for this process.
bmj.com Barrett-Connor and Wingard 322 (7277): 5