HDL is short for high-density lipoprotein. Each bit of HDL cholesterol is a microscopic blob that consists of a rim of lipoprotein surrounding a cholesterol center. The HDL cholesterol particle is ...

All cholesterol is not equal. It comes in healthy and unhealthy forms, and doctors have long advised people to cut back on the bad cholesterol, LDL, found in red meats and fried foods. The good kind, ...