For over fifty years, the scientific community has grappled with an unsolved puzzle in the realm of human blood types. It all ...

One of the most important characteristics of blood is its type. Knowing your blood type is essential for several healthcare situations. Knowing someone's blood type is important for blood transfusions ...

“Type B” was proposed as the more easygoing, tolerant personality, in contrast to Type A. More recently, the concept of “Type D” (for “distressed”) personality has been studied by ...