Blood Type B Is Vanishing

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Dear Psychologists

Half a century has passed since “Blood Type Humanics,” which researches the relation between blood types and human personality, was born into the world as the result of efforts by Mr. Masahiko Nomi.
Blood Type Humanics

At the moment, the research of Blood Type Humanics is stagnating because it has been denied by you, psychologists.

As one of the reasons for your denial, you may point out that its data acquisition method doesn’t comply with that used by phycology.

Meanwhile, as it needs endless proofs to demonstrate nothingness, whether any relation exists between blood types and human personality has not been
clearly demonstrated up to the present date.


It seems, however, that as an opinion of the general public, about 70 percent of them feel that there are some relations between blood types and human personality.

If it is found that there is any relation between blood types and human personality, it would have a significant impact.

Politics, economy, sports, and arts… it would have an impact on almost all things in which people are involved.

Although it is quite difficult to prove nothingness because it requires endless proofs, the mainstream of “Blood Type Humanics” is Mr. Masahiko Nomi.

He presented various data in his more than ten books. A large amount of data is contained in them, but it is finite.

With cooperation from as many scholars as possible, a replication study can be carried out. By doing so, it will be possible to draw a reasonably certain conclusion.


I think that psychologists play a role in the exploration of the human mind in the society.

Bullying, harassment, wars are the product of the human mind.

If there is any relation between blood types and human personality, the research of Blood Type Humanics might substantially contribute to human happiness.

Bullying, crimes, wars, and more could become things of the past.

I think that the relation of blood types and human personality should not be left vague.



I want to ask psychologists to double-check the data collected by Mr.Masahiko Nomi in any method that will meet your criteria.

The reason why I ask you to do it is that it is psychologists yourselves who have prevented the progress of the research of the relation between blood types and human personality by denying it.

Hajime Yamagami

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Blood Type B Is Vanishing
Was Albert Einstein disliked?
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