What is the impact on the body of arteriosclerosis?

Depends. It depends upon the location of the atherosclerosis. In the brain arteries, it causes neurologic deficits and stroke. In the heart it causes chest pain and heart attacks. In the kidneys it causes hypertension and renal failure. In the legs it causes claudication (leg pain when walking).
See below. Arteriosclerosis is the hardening of the vessel due to cholesterol deposit. It could affect the entire vascular circulation, cornsry vessels in the heart, vessels in the brain and other organs. When affects vessels in the heart could cause heart attack. Vessels in the brain could cause stroke. Abdominal aneurysm could be related to this disease.