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.