Thursday, June 30, 2011

What is a Stroke?

Stroke or brain attack is a disease that affects the blood vessels that supply blood to the brain. It occurs when an artery is clogged by a blood clot (ischemic) or a rupture of the blood vessel (hemorrhage).

When one of these things happens, brain cells do not get blood and oxygen they need. As a result, nerve cells in the affected area of the brain can not work properly, and die within a few minutes (usually 3 to 4 minutes). And when nerve cells can not work, the ability of an area controlled by the brain is missing. These capabilities include speech, movement and memory.

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