Heart beat: "Mini-strokes" have major risks

Heart beat

"Mini-strokes" have major risks

What's the difference between a stroke and a transient ischemic attack (TIA)?

At first, not much. They look the same, feel the same, and stem from the same thing — blocked blood flow to the brain. But a stroke lasts for hours, maybe longer, while a TIA fades away after a few minutes.

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