Blood type personality tests became popular in Japan in the 1920s, but many people around the world and now interested in this possible objective way to look at their personality. Personality typing ...

Blood type personality is a Japanese concept called ketsueki-gata that posits that blood type shapes one’s temperament. Ketsueki-gata is considered a pseudoscience, a body of thought that appears to ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...