Q. What makes cholesterol good or bad for your health?
A. Cholesterol travels through the bloodstream packaged inside a protein        called a lipoprotein. There are two kinds of lipoproteins that are important when        discussing cholesterol—         bad (LDL) cholesterol        and         HDL (good) cholesterol. LDL cholesterol is considered “bad” because too much of it in your bloodstream        can contribute to plaque buildup        in your         arteries        over time, also known as         atherosclerosis.