B-type refers to a classification often used in various fields, including personality psychology and blood types. In personality psychology, B-type individuals are typically characterized as relaxed, easygoing, and creative. They may prioritize social interactions and enjoy spontaneity, contrasting with more structured or competitive personality types. In the context of blood types, B-type blood is one of the four main blood groups, identified by the presence of B antigens on the surface of red blood cells. People with B-type blood can receive blood from other B-type donors and O-type donors, making it important for blood transfusions and medical procedures.