Good news on cholesterol: Average levels drop in US adults

Cholesterol levels of U.S. adults have dropped over the last two decades, according to a new national study. Between 1988 and 2010, average total cholesterol levels decreased from 206 to 196 milligrams per deciliter. Average levels of low-density lipoprotein (LDL) dropped from 129 to 116 mg/dl over …