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What is a Stroke?

The loss of blood flow to the brain damages tissues within the brain. Symptoms of a stroke show up in the body parts controlled by the damaged areas of the brain. A stroke occurs when there’s a blockage in the blood supply to the brain.

There are three primary types of strokes:

• Transient ischemic attack (TIA) involves a blood clot that typically reverses on its own.
• Ischemic stroke involves a blockage caused by either a clot or plaque in the artery. The symptoms and complications of ischemic stroke can last longer than those of a TIA, or may become permanent.
• Hemorrhagic stroke is caused by either a burst or leaking blood vessel that seeps into the brain.

The rupture or blockage prevents blood and oxygen from reaching the brain’s tissues.  This leads to paralysis if not treated quickly.

Following are some videos on stroke: