A stroke is a serious, life-threatening medical condition that occurs when the blood supply to part of the brain is cut off.
Strokes are a medical emergency and urgent treatment is essential.
The sooner a person receives treatment for a stroke, the less damage is likely to happen.
If you suspect that you or someone else is having a stroke, phone 999 immediately and ask for an ambulance.
The main symptoms of stroke can be remembered with the word FAST: Face-Arms-Speech-Time.
Read more about the symptoms of a stroke from NHS 111 Wales.