cholesterol build up in arterial walls
Atherosclerosis, sometimes called hardening of the arteries, occurs when fat (cholesterol) and calcium build up inside the lining of the artery wall, forming a substance called plaque.Over time, the fat and calcium buildup narrows the artery and blocks blood flow through it.therosclerosis, sometimes called hardening of the arteries, occurs when fat (cholesterol) and calcium build up inside the lining of the artery wall, forming a substance called plaque.