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    Regarding the relationship between blood type and personality , people often ask the following questions: "The four blood types O, A, B, and AB each have their own unique tendencies, but it seems a bit far-fetched to say that the human personality is divided into four types. Right?"



  In fact, the person who asked this question made a common sense mistake. Although the research community believes that blood type is the basis for judging the formation of a person’s personality, they never agree or say that “a person’s personality can only be divided into four types according to O, A, B, and AB” or “has a certain A blood type must have a certain personality" these words. And the reason why people make this kind of common sense error is because all people, no matter who they are, have a "trademark" mentality, that is, seeing the appearance of a thing, or just hearing the name of a thing, And I knew in my heart that it must be so. For example: As soon as I heard that the other person was from a certain university, I wishfully thought that he must be a very elegant or sophisticated person... etc.