Atherosclerosis is one of the conditions that can cause cerebrovascular disease. During this process, high cholesterol levels -- coupled with inflammation in areas of the arteries in the brain -- can cause the cholesterol to build up in the vessel in the form of a thick, waxy plaque. This plaque can limit, or completely obstruct, blood flow to the brain, causing a stroke, transient ischemic attacks, or dementia, which may lead to a variety of other health complications.

