Hello, blueberries are known as the universal fruit, long-term use of blueberries can effectively prevent hypertension and other cardiovascular diseases and protect the efficacy of eyesight, in addition to blueberries can also delay cerebral neural aging, improve the efficacy of memory, strengthen blood vessels, improve circulation, improve sleep, delay memory loss and other efficacy, so you can eat a little bit of every day, you can eat ah often as a fruit belongs to the health care, exactly! Every 2 days 3 days to eat some can also be, I sometimes eat blueberries, but you can also sell blueberry tablets