Reflections with Alphonsine

 Have you ever heard someone say, “I’m type A, so I’m naturally organized,” or “Type B people are creative but unpredictable” ? This is based on a Japanese concept called ketsueki-gata , or blood type personality, which claims your blood type can influence your temperament. While the idea is widespread in Japan and other Asian countries, and increasingly discussed in the West, science does not support a strong link between blood type and personality . Yet the belief persists, shaping how people perceive themselves and others. Let’s dive into what ketsueki-gata is, its history, and why it captivates so many. A Brief History of Ketsueki-gata In 1930, Japanese professor Tokeji Furukawa published a paper linking blood types to temperament. Inspired by ancient Greek ideas of personality, he proposed that blood type could explain psychological traits. He categorized blood types A, B, O, and AB, suggesting each had a unique influence on personality. Despite early critiques and a lack ...