High blood pressure (hypertension) is one of the most common chronic conditions in the U.S.  A blood pressure level of 140/90 mmHg or higher is considered high. According to the National Institute of Health, about two-thirds of people over age 65 have high blood pressure. 

We know that high blood pressure is the most important risk factor for stroke.  But a new study has shown that high blood pressure in people with a genetic risk for Alzheimer's disease may spur development of brain plaque, a...

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