High cholesterol is an important risk factor for heart disease, heart attack, and strokes. And although cholesterol screening is one of the most widely administered and evaluated blood tests, many people don't realize that our bodies require some cholesterol to function normally and remain confused about which cholesterol is the "good" one and which is the "bad." Now, in Good Cholesterol, Bad Cholesterol, Hirsch presents a clear, concise primer to all the varieties of this blood lipid, including HDL (high-density lipoprotein), LDL (low-density lipoprotein), VDL (very low density lipoprotein),...