Blood Type May Affect Stroke Risk, Brigham and Women's Hospital Study

Published: Nov 17, 2011

Your blood type might affect your risk for stroke. People with AB and women with B were a little more likely to suffer one than people with O blood — the most common type, a study found. The research can't prove such a link. But it fits with other work tying A, B and AB to more risk of blood clots in the legs and heart attacks. Blood type O also has been tied to an increased risk of bleeding, which implies less chance of clots, the cause of most strokes.

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