A stroke occurs when blood flow to a part of the brain stops. A stroke is sometimes called a “brain attack.”

If blood flow is cut off for longer than a few seconds, the brain cannot get blood and oxygen. Brain cells can die, causing lasting damage.

Image below comes from Imgur.com. This picture is intended for scientific reasoning and understanding for educational purposes. We appologize if the image upsets anyone.

(triggspot.com)

ANN.Az