Harvard Heart Letter

Recognizing the most common warning signs of a stroke

Three telltale symptoms occur in 75% of all strokes, often in combination. Don’t ignore them — even if they’re short-lived. Every 40 seconds, someone in the United States has a stroke. Also known as “brain attacks,” strokes result from an injury to a blood vessel that limits blood flow to part of the brain. Rapid diagnosis and treatment can prevent potentially devastating disability or death — which is why everyone should know…

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