Left hand and interesting things

The majority of humans are right-handed. So folk often liken their closest people like 'right hand' , not like the 'left arm' ever. So why do people rarely use their left hand? Humanity has about 95-98% right-handed people. Physiology calls this a beneficial phenomenon and explains: due to the influence of the labor and fighting process of the ancestors, it was passed down.

Derived from deep causes

In the Stone Age, people live in swarms, when fighting with beasts, their right hand takes a plunge or ax, while their left hand instinctively folds to protect the most important part of the body is the heart in the left chest. Many ancient paintings on the cliffs in ancient caves, dating back thousands of years, illustrate this. Later, the warriors also used weapons with their right hand, while the left hand held a shield or shield to shield it. The natural selection process takes place, along with the training and training that makes the phenomenon more and more popular.

In the past, most human tools were designed for right-handed people to use. Therefore, left-handed people may encounter some obstacles in their activities. However, due to adaptation from the baby, the majority of left-handed people still find it normal. Left-handed people are faster than right-handed people. According to statistics, for every 15 children in the French fencing team, there are 8 left-handed students. There is time, more than half of the members of the Chinese table tennis team are not right-handed. Not only is it more energetic, if you work hard on your left hand, you'll be smarter!

Left-handed will be smarter?

The brain is divided into two hemispheres: left and right. Each side has a function of activity on the other side of the body. The left hemisphere dominates most of the body's right part of the body, and has a special relationship with the development of a language called ' language dominant hemisphere '. Here, sensory pulses gather at the highest level to form language signals and abstract concepts. Therefore, the function of the left hemisphere favored the stage of cognitive reasoning and the formation of abstract thinking.

The right hemisphere of the brain controls the left half of the body. Through matching, sensory pulses create specific images of things, people, space and time. Therefore, the hemisphere must be biased towards the sensory perception phase, called the " dominant non-verbal hemisphere ". The left hemisphere controls the right hand, the right hemisphere controls the left hand, if we move the hand (especially the finger), we can stimulate the cell in certain areas, making the brain grow. That means, if someone uses their right hand, the left brain will grow and vice versa.

The process from sight to reaction in people with right-handed and left-handed people varies. In right-handed people, the nerve pathway takes the form of ' left hemisphere - right hand '. in left-handed people is the right-hand hemisphere - left hand '. Obviously, information from sight to movement in left-handed people can reduce one stage, so it will react faster.

Should I train my left hand?

In fact, the two hemispheres of the brain have both assigned, cooperated, supplemented, limited and compensated for each other. Usually, the two hemispheres work together. Thanks to that, you will have accurate movements. You practice your left hand, which is not meant to turn you into a left-handed person, but only enhance your left side activity, stimulating the even development of the brain.

In the first step, you can stretch your left fingers, one by one. Do it over and over until you are proficient. The second step, doing some tricky work with your left hand, like sewing needles and painting. In the third step, do the left-handed things that only the right hand can do until you are proficient. Be persistent, you will gradually see that not only do you have skillful hands but your body will also be more agile, think faster, intelligence grows remarkably.

Right-handed or left-handed is also due to birth. Someone who considers left-handed is a bad person, trying to fix. This is very wrong. Scientists interviewed in two groups of children. The first group of 'left-handed' left-handed children is right-handed, and the second group includes natural left-handed children. As a result, many children in the first group speak non-fluent, mental retardation slowly. The second group is the opposite, they respond fluently like any other normal child. Thus, trying to fix for left-handed people is meaningless.

Women always hold their children with their left hand.

Another interesting thing about the left hand: Women always hold their children with their left hand. A recent study showed that women's right brain (deciding the action of the left side of the body) controls information about the face. Therefore, when carrying babies on the left, they will be able to monitor their condition better.

Brenda Todd and Victoria Bourne, two University of Sussex psychologists (UK) have investigated the right-handing habits of right-handed people. These people were also tested to see which areas they used in assessing faces. When asked to hold a child or a doll, in two-thirds of the cases, the woman held it to the left. There is no difference in the number of men.

Researchers found that women holding babies with their left hands used the right brain to process facial information. Meanwhile, men do not exist this relationship.

Scientists believe that a woman's right brain has been transformed to recognize facial and emotional changes. That means that the information in their left-hand view (for example, carrying a baby to the left) will go straight to the right hemisphere. Thus, holding the baby on the left is the optimal position to help the mother evaluate her condition.