ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Artery disease. Computer artwork of blood cells (round) in an artery affected by atherosclerosis. This is a narrowing of an artery due to fatty deposits (yellow) on its inner walls. The deposits are made of atheroma, a substance comprising cholesterol, decaying cells, blood cells and fatty proteins. Narrowing of blood vessels raises blood pressure, which puts strain on the heart. Atherosclerosis is often caused by a fatty diet and a lack of exercise. It is the main cause of hypertension and heart attacks.
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