Left-handedness

India
January 11, 2013 3:56am CST
Source: knowledge VOL3/ISSUE2/FEBRUARY2013 PAGE 12. I am right handed, all in my family are right-handed; but I know some persons who are left-handed. There are several factors that decide whether one will be left-handed or right handed. About 50% more males are left-handed compared to females and 17% twins are compared to 10% in general. The vanishing twin hypothesis suggests that the left-handers were originally a twin but the right-handed fetus failed to develop. Even if both parents are left handed there is a 26% chance for their child to be left-handed. Another thing, whether one is left handed depends upon development; and hormone levels during pregnancy. [b]Hope you find this information useful. Are you left handed or right handed? Please comments on this please.[/b] Thanks in advance. Professor Dr. B.Saraf. PhD. Cheers have a lucky day ahead. January 11th 2013.
3 people like this
9 responses
@topffer (35541)
• France
11 Jan 13
I learned to write with my right-hand, although I am left-handed. The hands are not the best way to check if somebody is "left-handed" or "right-handed" because we have been taught to shake right-hands, our teacher put us a pen in the right-hand, etc. It is better to look at our feet that are a bit neglected by education. There is a simple test to check if you are really right or left "handed", based on the supporting foot -- the supporting foot of a right-handed person is the left foot, the right foot for a left-handed person ; it is the foot used to jump -- : close your eyes and walk straight on -- it is better to choose a place without walls -- ; if after a while you have moved to the left, you are right-handed ; if you have moved to the right, you are left-handed. This test shows that about 19% of people are left-handed, males like females. If you look only what are saying the hands you will find only 10 to 12% of left-handed persons, and more males than females, maybe because it is easier to well educate a girl than a boy. The study you are giving here is interesting. The 26% chance to have a left-handed child when both parents are left-handed shows that there is possibly a genetic factor, but that genetics cannot explain it completely. There is still a mystery.
2 people like this
• India
14 Jan 13
Thanks for detailed response, i am aware of the fact that genetics can't explain completely
1 person likes this
• United States
23 Feb 13
My father is born left-handed and my mother was born right-handed. Dad grew up in a time where it was frowned upon very badly to be left-handed. My grandmother, his mother, would turn away from this and my grandfather, his father, would smack him for not writing with his right. The thing is that both parents were right handed! Dad continued to write in secret with his left. He is now ambidextrous because he was forced for years to use his right hand. Fast forward to 10 years into his marriage with mom, my older was sister born being left-handed. Another 15 years later, I was born left-handed as well. I always wondered how I managed to flourish being left-handed. He sat down with me one day and said that if it wasn't for my parents fighting with the American schools, my sister and I have been ambidextrous as well. You see even when I went to school back in the 1970's, being left-handed was not approved in schools here. My sister and I are proud to be left-handed. We each have a daughter of our own now but both girls are right-handed.
• India
23 Feb 13
Thanks for this detailed response. Well you say in 1970's left handed were not allowed admission in schools.
• United States
23 Feb 13
That's what it seemed like but even before the 70's because my sister is about 15 years older.
• United States
9 Mar 13
Wildhorse that is just wrong.
@Lakota12 (42684)
• United States
11 Jan 13
I am right handed som are my kids and hubby but he had 2 sisters that are left handed also SIL mom isleft handed so is my grand daughter
1 person likes this
• India
14 Jan 13
Hi Sister Thanks for response, hope you are fine.
@Lakota12 (42684)
• United States
14 Jan 13
your welcome
@asliah (11148)
• Philippines
12 Feb 13
hi, i was born having a right handed and all of member of the family are right handed,but when a couple have different hand use like my brother.,he is right handed and his wife is left handed so the result is there child would rather be a right or left handed.
1 person likes this
• India
23 Feb 13
Most on this earth are right handed, a kid born to a couple, one left handed and other right handed may be left handed or right handed too.
• India
12 Jan 13
Hi professor. Well that was surely very interesting to read. I am right handed by the way. But when I used to play cricket I was able to play with both the hands equally well. However I was more inclined to play with the right hand. I never thought it had something to do with the hormones of my mother. Anyways have a nice day and keep sharing such interesting facts and things.. ~=SuperShames=~
1 person likes this
• India
14 Jan 13
Thanks for response.
@dawnald (84146)
• Shingle Springs, California
12 Jan 13
I"m right handed. 2 out of 3 of my children are left handed. Their father is also right handed. The left handedness came from my parents,my father for sure. My mother vaguely recalled being forced to use her right hand.
1 person likes this
• India
14 Jan 13
I too guess it came from your father Thanks for response.
@jaiho2009 (39001)
• Philippines
11 Jan 13
All I know is that left handed people are very creative. My grandfather is a left handed person and he is good in farming (though he is a Mining Engineer by profession) My brother (next to me) is a left handed person and he's good with musical instrument. My youngest son is left handed and oh well- he excels in computer games hugs to you and maa
1 person likes this
• India
14 Jan 13
Jane beti Are you left handed too? Thanks for details. Hugs from Dada
@cher913 (25890)
• Canada
11 Jan 13
i wonder if it is somewhat hereditary because my mom was originally left handed and got made to use her right hand. our daughter is left handed but hubby and i and our other daughter are all right handed.
1 person likes this
• India
14 Jan 13
Thanks for sharing your opinion, yes it might be hereditary lol.
@Kathy1981 (157)
• United States
9 Mar 13
I am right handed and my boyfriend is right handed and our three children are all right handed. But I love to read information on left handed people. This was very interesting. thank you for starting the discussion.