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Definition
By Mayo Clinic staffCholesterol is a waxy substance that's found in the fats (lipids) in your blood. While your body needs cholesterol to continue building healthy cells, having high cholesterol can increase your risk of heart disease.
When you have high cholesterol, you may develop fatty deposits in your blood vessels. Eventually, these deposits make it difficult for enough blood to flow through your arteries. Your heart may not get as much oxygen-rich blood as it needs, which increases the risk of a heart attack. Decreased blood flow to your brain can cause a stroke.
High cholesterol (hypercholesterolemia) can be inherited, but it's often the result of unhealthy lifestyle choices, and thus preventable and treatable. A healthy diet, regular exercise and sometimes medication can go a long way toward reducing high cholesterol.
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- Third report of the Expert Panel on Detection, Evaluation and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III). Bethesda, Md.: National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/guidelines/cholesterol. Accessed Dec. 13, 2012.
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- Expert Panel on Integrated Guidelines for Cardiovascular Health and Risk Reduction in Children and Adolescents. Expert Panel on Integrated Guidelines for Cardiovascular Health and Risk Reduction in Children and Adolescents: Summary report. Pediatrics. 2011;128:S213.
- Drug therapy for cholesterol. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Cholesterol/PreventionTreatmentofHighCholesterol/Drug-Therapy-for-Cholesterol_UCM_305632_Article.jsp. Accessed Dec. 13, 2012.
- Creider JC, et al. Niacin: Another look at an underutilized lipid-lowering medication. Nature Reviews Endocrinology. 2012;8:517.
- Samuel S, et al. Estimating health and economic benefits from using prescription omega-3 fatty acids in patients with severe hypertriglyceridemia. American Journal of Cardiology. 2011;108:691.
- Cooking for lower cholesterol. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Cholesterol/PreventionTreatmentofHighCholesterol/Cooking-for-Lower-Cholesterol_UCM_305630_Article.jsp. Accessed Dec. 13, 2012.
- Huffman KM, et al. Exercise effects on lipids in persons with varying dietary patterns - does diet matter if they exercise? American Heart Journal. 2012;164:117.
- Chapman MJ, et al. Triglyceride-rich lipoproteins and high-density lipoprotein cholesterol in patients at high risk of cardiovascular disease: Evidence and guidance for management. European Heart Journal. 2011;32:1345.
- Natural medicines in clinical management of hyperlipidemia. Natural Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Dec. 13, 2012.
- Red yeast rice. University of Maryland Medical Center. http://www.umm.edu/altmed/articles/red-yearice-000323.htm. Accessed Dec. 13, 2012.
- Miller M, et al. Triglycerides and cardiovascular disease: A scientific statement from the American Heart Association. Circulation. 2011;123:2292.
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