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What is Cholesterol? Cholesterol is a soft, waxy substance. It is fatty lipid found in the body tissues and blood plasma of vertebrates (animals with bones); it is only sparingly soluble in water, but much more soluble in some organic solvents. The weak ability of cholesterol to dissolve in water is a major factor in the development of atherosclerosis, a condition associated with coronary artery disease. Cholesterol is produced in the liver, the adrenal glands and reproductive organs. The liver produces about 80% of the cholesterol in your body. Cholesterol is a natural and necessary component of your body cells and many hormones. In cell membranes, cholesterol keeps membranes fluid and functional. Cholesterol also forms the backbone of hormones such as estrogen and testosterone. Cholesterol is transported in the bloodstream as lipoproteins to their destinations. Cholesterol is not totally a bad thing. Bad Cholesterol? Cholesterol becomes bad when high levels are present. High levels in the bloodstream are associated with hardening of the arteries, premature coronary heart disease and many other vascular disease problems. Unhealthy blood cholesterol levels are one of the major risk factors for heart disease -- the No. 1 killer of American men and women. The good news is that blood cholesterol levels can be modified. Children and Cholesterol About 1 in 500 people--about 145,000 kids younger than 18--has a form of inherited high cholesterol, called familial hyperlipidemia, that can send their cholesterol into the 300s and higher and raises their chances of suffering a heart attack or stroke in their teens and 20s. In addition, about 10% of kids, or almost 7 million youngsters, have total cholesterol over 190, which is considered high for a child. And there's been an explosion of kids with Type 2 diabetes, which used to strike primarily in adulthood, and an epidemic of obesity--all of which drive coronary artery disease. Reduce Cholesterol Buildup Spinach, broccoli and other dark green, leafy vegetables contain substantial amounts of a substance called lutein. High levels of lutein in the blood are associated with a reduced buildup of cholesterol. Walnuts are a rich source of omega-3 fatty acids, which lower levels of LDL cholesterol. How to control Cholesterol?
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