The root of the Blood type – personality relation

Introduction

Blood types are facts many of us know about ourselves. In certain cultures, such as Japan or South Korea, blood types are thought to determine personality traits.

This page is the first part of a study of articles.

Blood type and personality by Mary Rogers and A. Ian Glendon

A Pilot Study Using AI for Psychology: ABO Blood Type and Personality Traits by Masayuki Kanazawa

Please do read until the end, especially for this article as it may cause wrong information to be spread.

Context

40% of our personality is genetic, meaning it wouldn’t be weird that our blood types as in A, B, AB or O had an influence on our personality.

The relation of blood type and personality has been hypothesised since the times of Hippocrates.

The first studies to be done about this topic in the modern scientific world were by a japanese researcher called Furukawa in 1927.

The findings of Furukawa

• Os and Bs are active people being aggressive, progressive and positive
• As and ABs are passive people being conservative, defensive and negative

Individually,

• Os have temperamental characteristics being optimistic, sociable and strong willed.
  This puts them i the phlegmatic category of Hippocrates.
• As are melancholic being shy, docile, diffident, worrying, reserved and impressionable.
• Bs are sanguine as they are frank, light hearted, cheerful, sociable, quick and attentive.
• However, ABs had temperaments that were hard to put into a category

However, a different researcher argued that the methods an the use of the statistics in this research wasn’t done properly and found no relation of blood type and different aspects of the human mind.

Next Part : Evidence supporting the blood type-personality relation. Are they legit ?

Part 3 :

Part 4 :