Atherosclerosis is a disease in which plaque (a fatty deposit along the artery wall) builds up inside your arteries. Arteries are blood vessels that carry oxygen-rich blood to your heart and other parts of your body. Atherosclerosis limits the flow of oxygen-rich blood to your organs and other parts of your body. Atherosclerosis can lead to serious problems, including heart attack, stroke, or even death.
Click here for more information. http://www.nhlbi.nih.gov/health/health-topics/topics/atherosclerosis/