Right-Left-Handed Definition

People who preferentially use the right hand are right-handed and those with a greater skill with the left they are left-handed. In principle, this difference would have to be expressed at fifty percent, but it is not, since more than 80% of the population is right-handed. The question is therefore obliged, why are we mostly right-handed? The question does not have a definitive answer, but it is believed that the explanation comes from our brain structure.

The laterality of the hemispheres

We have two cerebral hemispheres, the left and the right. In the processes of learning of each individual there is a predominance of one hemisphere or another. The left is responsible for the intelligence mathematics, language and deals with analytical and logical issues. The law regulates emotional learning, intuitions and creativity.

Normally each person has more developed one hemisphere than another and this explains our different abilities. The laterality of the hemispheres may be the reason why most people are right-handed and not left-handed. In other words, how the left hemisphere regulates language and our ability

linguistics is exclusive to homo sapiens, this evolutionary circumstance would explain why a large part of the population is right-handed and only a minority is left-handed.

Although the right-handed population is the predominant one, it must be remembered that statistically there is something even rarer than being left-handed, being ambidextrous. People who can use both hands interchangeably are a minority that only reaches 1% of the population.

The right-handed-left-handed pairing from a cultural point of view

Usually the majority trends become normal and the minority ones become odd. The distinction between normal and rare is applicable to the right-handed-left-handed pairing.

For centuries lefties have suffered from a discrimination Social. They were considered distinct and consequently weird, abnormal, and twisted. Sometimes their strangeness was punished and children who wrote with the left were forced to change their natural tendency. It must be remembered that culturally the left side was associated with sin and the right side symbolized the right.

In everyday language there are expressions that recall this distinction and "being someone's right hand" is something positive while the word left has the same origin as sinister, a clearly pejorative concept. The "evil" of the left is seen in most cultures and, in fact, the word left in English comes from lyft, which means weak or broken.

Photos: Fotolia - vectoraart / Lena Lir

Right-Left-Handed Topics