Information about the prevention of stroke Information about the prevention of stroke Stroke is among the leading causes of neurological disability and death.
Strokes occur when the flow of blood to the brain is disrupted.
This interruption is usually caused by atherosclerosis or hypertension. There are several types of stroke although most fall into two broad categories-ischemic and hemorrhagic. Most strokes fall into this broad category, in which the blood supply to part of the brain is interrupted. In this type of stroke, a tiny clot or other material is dislodged from an artery and is carried into smaller brain vessels. The clot lodges in a brain artery and blocks blood flow.