BBC: What's the point of blood types?
You mean the different groups used to classify humans by blood- types A, B, AB and O. I think I'm type O. How about you, Neil?Well, it may sound strange but actually I don't know. Hmm, lots of westerners don't know theri blood type, but in parts of Asia blood groups are a topic of daily conversation. People select romantic partners based on blood type and different blood groups are associated wi..