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A stroke is an episode that occurs when the blood supply to part of the brain is suddenly interrupted or when a blood vessel in the brain bursts.
Symptoms of a stroke usually strike suddenly. They often include things like:
- Numbness or weakness in the limbs or face
- Severe headache
- Trouble speaking or understanding speech.
A stroke is a medical emergency; if you or someone else experiences possible symptoms, get help right away. Delaying treatment can result in lasting damage to your brain, or even death.(For more information, including details on the different types of strokes and factors that increase your risk, click Stroke.)