HDL cholesterol, or high-density lipoprotein cholesterol, is often referred to as "good" cholesterol. It is one of the five major groups of lipoproteins, which are complex particles that transport fat molecules around the body within the water outside cells
. HDL cholesterol helps remove other forms of cholesterol from the bloodstream, including within artery wall atheroma, and transports it back to the liver for excretion or re-utilization. This is why it is considered "good" cholesterol, as it can reduce the risk of cardiovascular disease, stroke, and other vascular diseases
. A blood test can measure your cholesterol levels, including HDL, and it is important to maintain a healthy HDL level to protect against heart attack and stroke
