What is Blood Cholesterol?

Cholesterol is a waxy, fat-like substance that your body needs for good health, but in the right amounts.

Lipoproteins  are small, round particles made of  lipids  (fats) and proteins . These particles carry cholesterol in your blood and throughout your body. Two types of lipoproteins include:

• Low-density lipoprotein (LDL), sometimes called “bad” cholesterol
• High-density lipoprotein (HDL), sometimes called “good” cholesterol

High levels of “bad” LDL cholesterol may create a buildup of  plaque  (fatty deposits) in your  arteries . This buildup can lead to a heart attack, stroke, or other health problems. High levels of “good” HDL cholesterol may lower your risk for health problems. HDL cholesterol carries cholesterol and plaque to the liver to be flushed out of the body.

The  genes  you  inherit  and your lifestyle habits play a major role in your cholesterol levels.

Routine blood tests can show whether your cholesterol levels are healthy or unhealthy. To help get your cholesterol levels into the healthy range, you may need heart-healthy lifestyle changes or medicines.