The 'holy grail' of longevity foods this doctor eats every day -- it protects you 'like a suit of armor'

Including blueberries in your diet can help reduce bad cholesterol and lower the risk of heart disease. They can be added to salads, smoothies, oatmeal, or eaten raw. Even in dried or frozen form, blueberries provide health benefits as part of a balanced lifestyle for longevity and well-being.