Now playing: What is a stroke?
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What causes a heart attack?
Your heart takes blood from the small coronary arteries that wrap around your heart. If... Play Video -
How to handle a heart attack
If you suspect someone around you is having a heart attack, it's important to act quickly ... Play Video -
How to handle a stroke
You need to take action immediately if you suspect someone around you is having a stroke ... Play Video -
Recovering from a heart attack
A heart attack is a significant event, and it could take time for your body to recover ... Play Video -
Recovering from a stroke
After you've had a stroke, it may take time for your body to recover ... Play Video -
What is a stroke?
When someone has a stroke, it's because their brain has suddenly stopped functioning. ... Play Video -
Cardiac arrest
When someone has a heart attack -- or myocardial infarction -- it means the blood flow to... Play Video -
Warning signs - Heart attack
By recognizing the symptoms of a heart attack, you'll be able to get help quickly ... Play Video -
Warning signs - Stroke
Strokes can be especially dangerous, because sometimes people don't even know that they're... Play Video
