Why B-Negative Is the Rarest Blood Type & What Makes It Special
Why Is Blood Type B-Negative the Rarest? Blood type B-negative is one of the rarest blood types in the world. The fourth positive type (AB-positive) is much more common, but the fourth group in general is still a mystery. Scientists say it came from the fusion of two very different blood types, A and B. It is considered a young blood group, appearing much later than the others, and people with it are believed to have a more flexible immune system. This flexibility helps them respond better to certain infections compared to other blood types. What makes this group even more unique is that it did not appear because of food, climate, or other outside influences, but because of mixed marriages between people with type A and type B blood. This means it is a result of human connection and diversity truly a product of humanity coming together. It is also worth mentioning that this group is the most biologically complex of all. Its antigens sometimes make it behave like type A, sometimes like ...