There's an odd fad going on in Japan: that a person's blood type determines his personality.
But it's not all fun and game. The craze has gone so far that there's a new form of discrimination called "bura-hara," where someone may not be offered a job because of his blood type.
In Japan, "What's your type?" is much more than small talk; it can be a paramount question in everything from matchmaking to getting a job.
By type, the Japanese mean blood type, and no amount of scientific debunking can kill a widely held notion that blood tells all. [...]
Taku Kabeya, chief editor at Bungeisha, thinks the appeal comes from having one's self-image confirmed; readers discover the definition of their blood type and "It's like 'Yes, that's me!'"
As defined by the books, type As are sensitive perfectionists but overanxious; Type Bs are cheerful but eccentric and selfish; Os are curious, generous but stubborn; and ABs are arty but mysterious and unpredictable.
From the Upcoming ueue, submitted by Geekazoid.
Its serious business as shown.
Its part of the culture and has been used to bracket people since bloodtypes were able to be read, Id say at least 70years!