Anonymous

Why Are Most People Right-handed?

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7 Answers

Lup Ma Profile
Lup Ma , ilupper, answered

My hypothesis is that humans advanced over other hominids because of our throwing skills. 90% of world population lives in the northern hemisphere and this necessitates 90% of us to be right-handers.

ilupper.blogspot.com/2011/12/right-handedness-addendum-to-i-

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Anonymous
Anonymous commented
I'm left handed what you trying to say!! I'm subhuman?? lol
Ray Dart
Ray Dart commented
Why does living in the Northern Hemisphere require that?
Evan Andle
Evan Andle commented
I am left-handed too. One explanation a doctor gave me was that most (not all) left-handedness is the result of minor brain damage during birthing. And the non-'damaged' lefties are bright and creative for unknown reasons.

I personally thought he was a d**k for saying that.
John McCann Profile
John McCann answered

Accident of evolution most likely. The left side of the brain controls the right hand. Humans went through a bottleneck event about 70,000 years and and the population of humans almost crashed. Possibly the hand preference was something that made it through the bottleneck in a genetic drift event so that descendents from that time on were more inclined to be right handed.

The exact and real reason seems to be quite the bone of contention among several scientific disciplines..

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Evan Andle
Evan Andle commented
Good point. Nature diversifies to optimize chances of survival. Which is why, during small tribe life, within each tribe, each archetypical human types would emerge: the observant-sensitives (Watching out for danger), the intuitives, the hard workers, the leaders, the shaman, etc.)
Evan Andle
Evan Andle commented
A neuroscientist told me that, depending on your handedness, information coming in to the CNS & brain 1st passes through either the left hemisphere's logic filters (if right handed) or right hemisphere's emotional/creative (is left handed) filters.

So what about ambidextrous people? A split concurrent signal processing?
John McCann
John McCann commented
@Evan Andle

" So what about ambidextrous people? A split concurrent signal processing? "

Quite possibly so, but evolutionary biology is more in my line than neuroscience..

Could be a consecutive signal; first left, then right flow in milliseconds. I really don't know though.
Anonymous Profile
Anonymous answered
There are more things in the world that are suitable for right-handed people, that is hard for left-handed people to do. It also could have been caused by the influence of the external environment impact, social issues, genetic issues etc. Also, in the past, many students were forced to write right-handed and also in Hinduism, the right hand must be used in eating, giving and receiving items or any other religious occasions. In today's advanced society, more mechanisms are meant for right-handed people, like scissors, cameras and computer-mice etc. Many Japanese swords are favored for right-handed people to cut more efficiently. Music instruments, like guitar, are also meant for right-handed people. Using pencil on the right hand is much more comfortable for people to use and so that's why there are more people who uses right hand than left hand.
Anonymous Profile
Anonymous answered
There are only 4% of people in the world who are left-handed and scientists are still unsure as to why the majority of humans are right-handed. In a human, it is usual for the two halves of the brain to control opposite sides of the body. So, the right-hand side of the brain controls the left-hand side of the body and the left-hand side of the brain controls the right-hand side of the body. When a person is left-handed, the left-hand side of the brain controls the left-hand side of the body.

Living in a right-handed society, this can be a problem for left-handed people because so many things including buttons, door handles and scissors are designed for people who are right-handed. Although scientists have a good idea of why some people are left-handed, they have yet to discover the precise details and reasons why they differ to right-handed people.

However, it has been noted that left-handed people are much more creative and intelligent than right-handed people. Some famous figures such as; Bill Clinton, Ronald Reagan, George W. bush, Julius Caesar, Queen Victoria, Henry Ford, Prince William and his father Prince Charles, Julia Roberts and Einstein were all left-handed. There is even a national day dedicated to left-handed people which is August 13th.
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Evan Andle
Evan Andle commented
I respect your answer. I would suggest that what is 'noted' about left-handers is that, in general lefties excel in creativity-related intelligence. And righties excel is logicistal, structured intelligence.
Anonymous Profile
Anonymous answered
My dad is left handed and my mum is right handed and me and my sister is right and my brother and other sister is left has it got something to do with your parents?!
Anonymous Profile
Anonymous answered
Albert Einstein and George W. Bush are not left handed.

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