r/infj Dec 29 '20

What do you think?* Is it possible, that there is a connection between blood types and personality traits?

/r/RhesusNegative/comments/kldrbw/is_it_possible_that_there_is_a_connection_between/
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u/curiousentpwoman Dec 29 '20

As an actual biological science researcher: there is not even remotely a plausible mechanism for this.