The personality of type A blood changes over time

　　Personality is not fixed, it changes constantly with time, place, and situation. You cannot easily determine its nature with a single sentence or a phenomenon. Even so, through the relationship of blood type, we can still roughly predict the change of a person's personality, and achieve "an unpredictable prophet".

　　As time changes, how will the personality of people with blood type A change?

　　Type A people are just the opposite of Type O people. When they were young, they were resolute and strong everywhere. After entering the society, they began to restrain themselves and showed a steady and modest attitude as they grew older. They tended to become cautious people who did not want to overexpress themselves. However, generally in old age, they become more stubborn.