In Japan, your bloodtype indicates your personality.This is taken more seriously than the zodiac... and so.. 1) Type O: quick healers, natural leaders & peacemakers with a strong sense of purpose. a carefree attitude towards life, very popular & emotionally centered.In times of crisis, they will often panic. 2) Type B: very strong willed but easy to get along with. they're adventurous,curious with lots of energy. but their enthusiasm can get the better of them sometimes. they can be very moody. 3)Type A: calm & careful in what they do. they don't rush into things and are generally very even tempered, but while they seem to be very stable, sometimes a fragile emotional state is right below the surface. 4) Type A/B: supposedly the most considerate of all to both people and the world around them. they like everything to be calm & stable. Unfortunately, this tendency can make them conservative & unable to go all out for anything.