![]() ![]() Though most studies have shown that blood type doesn’t directly influence personality, some experts still believe there may be more to the story than what’s flowing through your veins. Is there any link at all between personality and blood type? ![]() Since this concept’s emergence in Japan in the late 1920s, the blood type personality theory has been the subject of many studies worldwide.Ĭurrently, no scientific evidence supports a cause-and-effect relationship between a person’s blood type and personality traits.Įven using current investigative methods, a 2021 study examining blood type and personality demonstrated no significant correlation. It was maintained and publicized by his son, Toshitaka Nomi, until Toshitaka died in 2006. Nomi added to the original blood type personality theory and suggested that blood type could be linked to disease or physical predispositions.Īnd like Furukawa’s work, Nomi’s report also came under heavy scrutiny for being uncontrolled and anecdotal.ĭespite this criticism, his outline for blood type personality theory remains the basis for current models. He included data from multiple method approaches, such as: In his report “Understanding affinity through blood type,” Nomi expanded on Furukawa’s concepts. It was brought to the scientific community a second time in the 1970s by independent researcher and journalist Masahiko Nomi. The theory of blood type personality persisted, however. After publication, the evidence was later questioned due to possible political influences and the too-small sample size used in the research. In his research, Furukawa linked personalities to different blood types.įurukawa presented preliminary statistics for his theory based on small population samples. Blood type personality theory was first introduced in 1929 when professor Tokeji Furukawa published “ A study of temperament and blood-groups.”
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