The so-called left-hander is a habitual left-hander. According to statistics, among 10 people, only 1 is left-handed, and most of them are men. In fact, as early as the beginning of the19th century, left-handed people were not liked, and people always thought that left-handed people might suffer from mental illness or disability. But with the change of ideas, people seem to find that left-handed people seem smarter, such as Leonardo da Vinci, Newton and Bill Gates. They are all left-handed. But in the final analysis, left-handed people, like right-handed, are just an innate habit, which is determined by genetic factors and is no different from ordinary people.
Previous scientific research has tested the IQ of left-handed and right-handed, and found that there is no special difference between them, but relatively speaking, left-handed people use their right brains more. The right brain is more creative and imaginative than the left brain, which can also explain why most left-handed celebrities have made outstanding achievements in science, painting and other fields. However, the study also believes that left-handed people are likely to suffer from schizophrenia in the future, because in the process of operation, the brain will lean to one hemisphere in order to ensure normal efficiency, which is actually similar to schizophrenia!
Generally speaking, left-handed people and right-handed people have their own strengths, and the question of who is smarter mainly varies from person to person. After all, everyone has different personal cognition, different innate genes and different living environment. Some people may ask, "If your child is found to be left-handed, should parents intervene to correct it?" At present, if children use their left hand more, but it does not affect their lives, there is no need for compulsory intervention and correction. After all, it is most important to respect nature and let nature take its course.