Definition: HDL is an acronym for high-density lipoprotein. HDL is a particle made up of proteins and fats which carry cholesterol to the liver, where cholesterol is removed from the body.
HDL cholesterol is often referred to as “good” cholesterol since high levels of it have been shown to lower the risk of developing heart disease. An HDL level of 60 mg/dl or greater is considered high and signifies a lower risk of developing heart disease. An HDL level under 40 mg/dl is low and increases heart disease risk.
Learn More: How to Increase Your HDL by About.com Guide to Heart Disease
Examples:
Sue was happy to learn from her doctor that her HDL level is 62, which means she is at a lower risk of developing heart disease than someone with a lower HDL level.