What is a stroke

What is a stroke
 Stroke - rapidly developing painful condition caused by bleeding in the brain or thrombosis (blockage) of cerebral vessels and cause loss of consciousness.
 It is known that certain parts of the brain have different functions. For example, the cerebral cortex responsible for speech, thinking, muscle activity; subcortical part - for the heart, breathing, etc .; cerebellum - the coordination of movements. Stroke, when a certain blood flow to the area of ​​the cells is reduced or completely eliminated, the function of these disorders occur.

There are two main types of stroke. First - hemorrhagic. This painful condition in which the enlarged gap portion of the vessel, the consequence of which is a brain hemorrhage. The causes are congenital abnormality artery (aneurysm) or rupture of the vessel on a background of hypertension (high blood pressure). Typically, such a stroke affects one half of the brain. Since cells in a damaged section die, then there is dysfunction of the body on the opposite side. For example, with the defeat of the left half of the cerebral cortex in a patient it is broken and he ceases to understand others. The symptoms of hemorrhagic stroke are the occurrence of vomiting and loss of consciousness.

Ischemic stroke is more common in which there is a sudden blockage of the lumen, or that the supply portion of the brain by a thrombus or atherosclerotic plaque. The main reasons are considered atherosclerosis, atrial fibrillation, and more. Ischemic stroke symptoms - loss of coordination, dizziness, sudden blurred vision, numbness or paralysis, speech impairment. For this type of disease is characterized by transient cerebral transient ischemic attacks (mini-strokes), which lasts several minutes. Ischemic stroke often develops without loss of consciousness.

Any type of stroke can lead to muscle weakness, coma this to a breach of intelligence and memory, and in the worst case be fatal. In many ways, the emergence of circulatory disorders in the brain contribute to hypertension, diabetes, overweight, bad habits. Therefore it is necessary to monitor changes in blood pressure, eat right and maintain a healthy lifestyle.

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