Blood type & personality

In Asia, there seems to be a widely held belief that one's blood type has a strong correlation to one's personality. For example, Type As tend to be more responsible, anal and driven, whereas Type Bs tend to be more free-spirited, irresponsible and lazy. I only just found out my blood type this week during my physical and it turns out I am AB +. Which supports something I've always believed about myself - that I'm always at conflict with myself: the rational, responsible, hardworking, risk adverse Deb against the free-spirited, grab-life-by-the-reigns, live with no regrets Deb.