The chemicals in tobacco smoke harm your blood cells. They also can damage the function of your heart and the structure and function of your blood vessels. Atherosclerosis is a disease in which a waxy substance called plaque (plak) builds up in the arteries. Over time, plaque hardens and narrows your arteries. What is the MOST IMMEDIATE result of atherosclerosis listed here? A) stroke B) heart disease C) constricted blood flow D) peripheral artery disease