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Atherosclerosis symptoms can depend on which arteries are blocked and the severity of your blockage. For many people, it progresses silently.
Normally, the blockage should affect approximately 70% of the artery for symptoms to become noticeable. [3] Symptoms can be less severe during gradual narrowing, as this allows time for the widening of existing vessels and the formation of new ones ( collateral vessels ), allowing blood to still reach the area.
Peripheral arterial disease is a blockage in the arteries that carry blood away from your heart. It usually develops in your legs. The strongest risk factors are diabetes and smoking.
Symptoms include chest pain or angina, shortness of breath, and fatigue. [6]A completely blocked coronary artery will cause a heart attack. [6] Common heart attack symptoms include chest pain or angina, pain or discomfort that spreads to the shoulder, arm, back, neck jaw, teeth or the upper belly, cold sweats, fatigue, heartburn, nausea, shortness of breath, or lightheadedness.
Atherosclerosis [a] is a pattern of the disease arteriosclerosis, [8] characterized by development of abnormalities called lesions in walls of arteries.This is a chronic inflammatory disease involving many different cell types and driven by elevated levels of cholesterol in the blood. [9]
Each year in the United States, according to the Centers for Disease Control and Prevention (CDC), about 735,000 people have a heart attack and 610,000 people die of coronary heart disease (CHD).