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health as it happens

Is there such a thing as a silent stroke? - Harvard Health

Ask the doctors

Q. I’ve heard of silent heart attacks, but is it also possible to have a stroke and not know it?

A. Yes, it’s possible. In fact, a statement issued by the American Stroke Association and American Heart Association estimated that as many as a quarter of octogenarians may have experienced one or more strokes without symptoms. These events are often detected only when a person undergoes brain imaging for another reason.

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