Eating three or more weekly servings of blueberries and strawberries, or other foods high in anthocyanins, may reduce women\’s risk of heart attack, say researchers.
http://www.medicalnewstoday.com/articles/254971.php

If you regularly eat blueberries your chances of suffering from hypertension (high blood pressure) may be reduced by 10% because of their bioactive compounds – anthocyanins – researchers revealed
http://www.medicalnewstoday.com/articles/213820.php