It is the ABO blood type system that is most widely known. It classifies people into four kinds
of blood types -- Type O, Type A, Type B and Type AB. There are more blood
systems such as Rh System,
P System, MN System,
Q System and so on. Each system are not
people into four blood types. But, It is rather
difficult to check the relation between blood type and personality, because people
don't know their blood types except the ABO system.
A famous Japanese science writer, Kumiko Takeuchi says there probably more close relation between HLA and personality than other blood types.
There are many data that shows obvious relation between blood type and personality. For example, Masahiko and Toshitaka Nomi and Raymond B. Cattell's study proofed it. The reason has not been clarified scientifically yet.
This sort of misunderstanding seems to be spreading. For example, I don't say that 100%
personality is decided by sex,
the nationality, region, occupations, age and so on. It may be the extent with the trend of X
It is mysterious why only blood type is said to decide 100% personality.
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Last update: November 20, 1997.