Why Are More People Right-Handed Than Left-Handed?
Maybe I have the answer… The human brain is divided in two halfs, the right one is responsible for everything we do with our LEFT side, and the left half for everything we do with our RIGHT side. And the two halfs have different tasks. The right one is the creative part of our brain (center of talents in music and art, for example), while the left one is the center of speech, learning, mathematic skills etc. So the center of speech is in the half which is also responsible for the right side of our body, and that’s the reason why there are more right-handed people. P.S.: But as the right half is the creative one, the left handed people are said to be more creative, too…but don’t be sad, right-handed people, we’re better in maths…
No one knows for certain why the human population is right-handed-dominant, but a number of theories have been proposed. Brain hemisphere division of labor is the most commonly accepted theory of handedness. The premise of this theory is that since both speaking and handiwork require fine motor skills, having one hemisphere of the brain do both would be more efficient than having it divided up. And since in most people, the left side of the brain controls speaking, right-handedness would prevail. It also predicts that left-handed people would have a reversed brain division of labor. Lastly, since other primates do not have a spoken language (at least of the type we have) there would be no stimulus for right-handed preference among them, and that is true. Objections to this theory claim that it does not explain why the left hemisphere would always be the one controlling language. Why not 50% of the population left and 50% right? While 95% of right-handers do indeed use the left side of
The right half of the brain controls the left side of the body, and the left side of the brain controls the right side of the body. In most people, the left side of the brain is better developed, so the right hand is stronger and more controllable than the left hand. But sometimes, the right side of the brain is more developed;
