What does arteriosclerosis do in the body?

Many things: Atherosclerosis affects the arteries of the body. It acts in varying degrees and stages. One of the first manifestations is an attenuation or loss of the normal dilatory response of arteries. They also become progressively stiffer and as they accumulate more and more internal debris the flow becomes more turbulent. Increasing activation of the inflammatory process is noted, with resultant clots.

Deposits cholesterol: Atherosclerosis occurs when cholesterol deposits called plaque form in the wall of your arteries. If the plaque gets big enough it can block flow of blood causing injury to the tissue that was supplied by the artery. That is how heart attacks, strokes, leg ulcers, etc occur.

Clogg vessels: It is the primary cause of many cardiovascular disorders like heart attack, stroke, aneurysms need for coronary stents and angioplasy, bypass surgery to mention a few.