Who is smarter, left-handed or right-handed?

In life, some people are used to doing things with their right hands, including writing and holding chopsticks. This is called right hand, and left hand is called left hand. Most people in life are right-handed. For left-handers, they seem to feel different. There is a saying that "left-handers are smarter". Seeing some students write with their left hands, they will feel very energetic and smart. So, what is left-handed and really smarter than right-handed?

Left-handed people are still relatively rare in life. It may be a school. Only one of thousands of students is left-handed. In most cases, left-handed people are actually influenced by genes. One of the parents, or atavism, will be left-handed. Left-handed people are also divided into different situations. One is completely left-handed, and he is left-handed no matter what he does. You also do things with your left hand, such as writing with your left hand and eating with your right hand. This phenomenon also exists. Left-handed people will encounter some inconvenience in their daily life. Many electrical appliances are designed according to the right-handed habit, so it is not very convenient to use.

People from all walks of life have different views on which is smarter, right-handed or left-handed. In fact, there is no difference between the main determinants. People who use their right or left hands are not controlled by the brain, but by the spinal cord. It was found that the fetus had the habit of sucking around 13 weeks of pregnancy. 90% children choose their right hand, 10% children choose their left hand. At this stage, the development of the child's brain and spinal cord has not yet formed. Mainly look at the spinal cord. This is only due to habit, not intelligence.

Medical research shows that right-handed people and left-handed people have their own advantages and characteristics. Scientific research shows that Left has the advantages of language, logical reasoning and numerical analysis. Right-handed people have the advantages of imagination, music and painting and comprehensive functions, which are mainly influenced by the left brain and the right brain. The human brain has left and right hemispheres, which control the lateral movement of the human body. The left hemisphere controls the right limb, and the right hemisphere controls the left limb. The left brain and the right brain have different division of labor and complement each other, which brings different professional fields to left-handed and right-handed people and forms their own characteristics. This does not mean that left-handed people are smarter than right-handed people.