A, B, O, AB

In the first week of class I asked students to come up with 3 adjectives describing their personality, using a thesaurus to experiment with new vocabulary.

How about your blood type?

This is a detailed explanation of the role of “blood type personality theory” which used to be so popular in Japanese society (from Tofugu).

When I first came to Japan, one of the first questions people asked me as I got to know them was, “What’s your blood type?” I thought it was an odd question, asked as casually as “Where are you from?” or “What do you do?” (or maybe the often asked in Japan but less commonly asked by native speakers, “What’s your hobby?”). In fact, at the time I didn’t know what my blood type was because to me it was one of those things only doctors cared about.

Here’s a chart that uses lots of adjectives for personality. Can you guess which blood type this is?

These days, people don’t seem to care about blood type as much. Maybe it was the realization that, like horoscopes, trying to explain a person’s character through blood type is, at best, a good conversation starter. At worst, it can lead to what the article calls “blood harassment”.

Do you and your peers care about blood type? Is it something you ask about when you meet someone new? Have you heard any stories about blood type affecting a relationship? What about horoscopes — do you read them or believe them?

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