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"Character" is not fixed, it will constantly change with time, place, and situation. You cannot easily determine its "nature" with "a sentence" or "a phenomenon." Even so, through the relationship of blood type, we can still roughly predict the personality changes of each person, and achieve a little "unexplored prophet".


People with type O blood change the most with time.

    Among young people who have just started to work, those with blood type O are generally honest, loyal and docile to their superiors, and are easy to win leadership favors. After entering adulthood and having some experience at work, they begin to actively express their opinions, express themselves, and sometimes appear overly tough.


People with type A blood are just the opposite of those with type O blood .

    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.


The age change of people with type B blood has little effect on temperament.

    However, sometimes it changes from being cautious to being outspoken, but this is not a change in personality, but because of familiarity with the surrounding people and environment. Since this kind of person's personality rarely changes from childhood to old, relatively speaking, it makes people feel that they live younger and younger.


People with type AB blood tend to have "dramatic" personality changes as they get older.

    Early childhood and adolescence were very cognizant of birth and did not want to contact strangers. As they grow older, they gradually become a different kind of person: positively speaking, easy to provide opinions, wide-ranging, generous to people, and good at socializing. However, perhaps because of overconfidence, they become arrogant when they are complacent with their achievements and merits.