Stroke

Stroke is a term that refers to the functional disorders of the central nervous system, used in the normal blood flow to the affected brains occurs because a blood clot or rupture of blood vessels and vital brain tissue dies. Stroke, a series of strokes.

Cerebrovascular events may be caused by one of the three mechanisms.

Cerebral thrombosis - obstruction of the thrombus (blood clot), which is based on the wall of cerebral arteries.

Cerebral embolism - obstruction of embolism (usually a clot) dragged into an artery in the brains.

Hemorrhage - burst blood vessels and bleeding in the brains or on the surface.

Thrombosis and pulmonary embolism, both lead to cessation of blood flow to the brains infarction (tissue death). Demolition of the blood vessels in the brains or in the vicinity may cause intracerebral hemorrhage or subarachnoid hemorrhage.

Symptoms of stroke usually develop within minutes or hours, but after a few days. Depending on the location, causes and extent of the damage, or any rights symptoms may be present in a certain degree of seriousness. More severe cases can cause a rapid loss of consciousness, coma and death or serious physical or mental disability.

Hemiplegia - paralysis or weakness on one side of the body is one of the most common consequences of stroke.

Below are the symptoms of stroke:

Headache
Dizziness and confusion
Visual disturbances
Slurred speech or loss of speech
Problems with swallowing

Risk factors:

Age
High blood pressure - a weakened vessel wall
Atherosclerosis - narrowed arteries Channels
Cardiovascular disease - either precipitate a place in my heart breaking and migrate to the brains.
Diabetes mellitus - a rapid deterioration of small blood vessels
Smoking - increases the risk ofhypertension
Polycythemia - increased levels of red blood cells.
Hyperlipidaemia - a high level of fatty substances in the blood