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Cholesterol
Cholesterol is a soft, fat-like, waxy substance found in the bloodstream and in all your body's cells. It's normal to have cholesterol. Cholesterol is an important part of a healthy body because it's used for producing cell membranes and some hormones, and serves other needed bodily functions. But too much cholesterol in the blood is a major risk for coronary heart disease (which leads to heart attack) and for stroke. Hypercholesterolemia is the medical term for high levels of blood cholesterol.
HDL-Cholesterol (Direct)
HDL is one of the classes of lipoproteins that carry cholesterol in the blood. HDL is considered to be beneficial because it removes excess cholesterol and disposes of it. Hence HDL cholesterol is often termed "good" cholesterol. The test for HDL measures the amount of HDL-cholesterol in blood.
High levels of HDL can help protect you from a heart attack or stroke. HDL carries cholesterol from the body's tissues to the liver. So, low levels of HDL can increase the risk of heart disease.
LDL-Cholesterol (Direct)
LDL cholesterol is the bad cholesterol. When too much of it circulates in the blood, it can clog arteries, increasing your risk of heart attack and stroke. LDL cholesterol is produced naturally by the body, but many people inherit genes from their mother, father or even grandparents that cause them to make too much. Eating saturated fat, trans fats and dietary cholesterol also increases how much you have. If high blood cholesterol runs in your family, lifestyle modifications may not be enough to help lower your LDL blood cholesterol. Everyone is different, so work with your doctor to find a treatment plan that's best for you.
VLDL-cholesterol
VLDL (Very low density lipoprotein) is composed mostly of cholesterol, with not much protein. VLDL is often called "bad cholesterol" because it leaves cholesterol on the walls of arteries.
Total Cholesterol
The total cholesterol is based on:
- LDL ("bad" cholesterol)
- HDL ("good" cholesterol)
- Triglyceride (a type of fat found in your blood) levels
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.