That study goes way back...to the seventies I think. Someone took a look at the records of a group in which the handedness of folks were known. (like a small group of celebrities obituaries) It is more of an urban myth than a scientific study.

The toughest part about being left handed is the scissors which pinch ones fingers horribly.

I find that many of the left-handed folks have many oriental pasts...the "smear" factor, Dan mentions doesn't exist in the orient - where one writes right to left! For them it is the right hand which smears the ink and ruins the intricate symbols. All books and magazines start in the right side and end in the left. (Their front being our back)

Naturally, if you spent many lifetimes in the east - one might very well become left handed through polarization over time.

Something to think about...

SDAI-Tech1