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High cholesterol is too much blood cholesterol, particularly that stored in low-density lipoprotein (LDL). Although the body needs some cholesterol to function, the liver manufactures the required amount on its own. Poor diet and lack of exercise increase LDL, which delivers some of this fatty substance to the blood vessels, leading to atherosclerosis.
There are many names for what we commonly call high cholesterol. You may also encounter the terms hypercholesterolemia (too much cholesterol), hyperlipidemia (too many fats) or dyslipidemia (the wrong ratio of good and bad fats).
Scientists' understanding of cholesterol has evolved. Watch an online health seminar: Cholesterol — The Good, the Bad and the Ugly.
Our preventive cardiologists specialize in helping patients learn to control their cholesterol through a combination of behavior change and advanced medicine.
The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease takes a multidisciplinary approach to helping you prevent heart disease and stroke — and that includes getting your cholesterol in check.