Harvard Health Letter

Reduce your risk of silent strokes

Silent strokes occur without symptoms, yet have the potential to severely impair memory and brain health. A silent stroke is usually the result of a clot forming in a tiny artery supplying blood to a “silent” part of the brain. These areas don’t control vital functions, such as speech or walking, which is why the interruption of blood flow doesn’t result in obvious symptoms. But a person can experience multiple silent strokes, which can start to reveal themselves through memory lapses and mood changes.
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