High blood pressure, high blood sugar, and obesity are some of the common conditions that lead to increased risk of heart disease. A recent study, however, suggests that berries, including strawberries and blueberries, may reduce the risk of heart disease in women, due to their high content of anthocyanins. Anthocyanins are part of a sub-class of flavonoids, which may help to counter the buildup of plaque and improve cardiovascular health.