Re:The geography of American left-handedness
by Someone1234 on Wednesday September 23, 2015 @01:49PM
(#10266646)
You are the 9% (if both parents are righties, then there is a 9% chance of a left handed baby).
What's interesting about left handedness is that even if both parents are lefties, the kid's chance is only 26%. Which is strangely low for something where there is some generic link.
If one parent is a lefty the chance drops to 19%, and if no parent is a lefty then it is 9%. The average over society is 10% of the population.
I almost don't wonder if generics isn't the primary reason that people are left handed, but generics can make you more likely to be a lefty (for whatever reason). That would somewhat explain the statistics.
Re:The geography of American left-handedness
by MacAsm on Wednesday September 23, 2015 @02:01PM
(#10266751)
my parent are right-handed too but my grandma is leftie. But it seems almost everybody else didn't have any leftie in the family that they're he's aware of. I find this odd, mostly because they says it's genetics so a lot of people cary left handed genes but it's hardly "primary"/"used" (I don't know the right word).
My writing is still horrible. Sometimes even I can't read it. I became used to getting worse grades just for that. Same goes for art class. I was the only person in class to cut himself with paper scissors...
Thanks to the motivation of my gf and colleges, I've started learning to write with my left hand but it's not easy. It's like starting over again. My gf bought me scissors for lefties. What a beautiful feeling to cut paper with the "right" hand!