These may include conditions such as the
following abnormalities in the
blood vessels of the
brain, atherosclerosis, or hardening of
the arteries supplying the brain, bleeding into the brain, such as a subarachnoid hemorrhage , brain tumors, chromosomal
abnormalities, congenital diseases or conditions, high blood pressure, pregnancy and problems associated with pregnancy, stroke, transient ischemic attack, which is also called a mini-stroke.