A stroke is a sudden, violent event in which the blood flow to the brain stops, usually within minutes.
It can happen to anyone, but strokes are more common in younger people.
A stroke occurs when the blood vessels that supply the brain narrow and become blocked.
The stroke usually occurs in the neck, chest or groin.
A person may not feel the effects of the stroke until they are at least two weeks later, and symptoms typically include difficulty thinking, feeling or speaking, fatigue, shortness of breath, dizziness and weakness.