Benefits of exercising your left hand

Some friends actually exercise their left hand frequently when they exercise, because exercising the left hand is actually developing their right brain. The right brain has more development effects on our image thinking ability, but many friends do not exercise their left hand enough. Therefore, friends who exercise frequently can try to exercise their left hand and develop their right brain.

The human brain is divided into left and right brains. Using your left hand can exercise the right brain. Please note, it is the right brain! Develop your thinking. The right brain's ability to recognize space and images, that is, its ability to think in images, puts the right brain at the forefront of the brain's perception of the world and gives it a stronger perception. As a physicist, Einstein's left brain should have been particularly developed. However, in-depth research found that he could not pass the French test in school. Instead, his hobbies included playing the violin, painting, sailing and imaginative games. Einstein attributed many of his scientific ideas to his imaginative play - the activities of his right brain. It is said that one summer, he fell asleep on a hill and dreamed that he rode a beam of light to the far end of the universe. When he found himself "illogically" returning to the surface of the sun, he suddenly realized that the universe was curved, and realized that the "logical" knowledge he had learned before was incomplete. Einstein translated this picture into language, and the numbers, formulas, and words he wrote down became the "Theory of Relativity."

Being left-handed has both advantages and disadvantages

For a long time, people have had a prejudice against left-handed people, believing that they are inferior to right-handed people, and many left-handed people have always felt that they are discriminated against. In fact, left-handed people do have some difficulties in life, because most of the utensils are designed for right-handed people, and almost all the facilities in life are prepared for right-handed people, which often brings many inconveniences to left-handed people.

Modern medical research has shown that because the right hemisphere of the brain is dominant, and the right hemisphere of the brain focuses on emotion, intuition and art, left-handed people are prone to emotional setbacks, which can cause fear, depression, schizophrenia and other symptoms. They are more susceptible to autoimmune diseases such as diabetes, ulcerative colitis, rheumatoid arthritis, myasthenia gravis, etc.; anti-depressants, antihistamines, and sedatives can easily cause changes in the EEG that are different from normal people; and they are prone to having difficulty reading aloud. Some studies have pointed out that left-handed people attempt suicide three times more often than normal people, their life expectancy seems to be shorter than right-handed people, and they are more likely to suffer casualties. Some scholars have done research on this. Among the 189 college students surveyed, they found that the incidence of various injuries was different between left-handed and right-handed people:

- Left-handed people are 20% more likely to suffer sports injuries than right-handed people;

——Left-handed people are about 25% more likely to be injured at work than right-handed people;

——The incidence of various accidental injuries in the home is 49% higher for left-handed people than for right-handed people;

- The incidence of injuries caused by improper tool handling is 5% higher in left-handed people than in right-handed people;

——Left-handed people are 85% more likely to be involved in traffic accidents than right-handed people.

Although left-handedness has many disadvantages, it also has its own advantages. The positioning and division of labor of the left brain and the right brain are not absolutely isolated. Generally speaking, the more developed the "logical" area of ​​the left brain, the more developed the "intuitive" area (or artistic area) of the right brain. Left-handed people have the ability to fully utilize both areas of the brain, so they are superior in many areas. The famous American humorous film artist Charlie Chaplin and the renowned French painting master Picasso were both left-handed. There are also many left-handed celebrities in history, such as Alexander the Great, Charlemagne, Napoleon, etc. Left-handed athletes also excel on the sports field. In the history of baseball, half of the best pitchers are left-handed or can bat with both hands. Left-handed people are very prominent in sports such as tennis, badminton, table tennis and basketball. In competitive sports that require very high neural response, left-handed people can take advantage of the "neural short circuit" in their right brain to quickly attack the opponent and win by surprise. Especially in the field of mathematics, left-handed people are even more noticeable. Researchers at Johns Hopkins University in the United States found that left-handed children with mathematical talent are almost twice as likely as right-handed children.

Left-handed people are more agile

The agility of left-handed people has become a permanent topic in the sports world. Generally speaking, for sports that do not require face-to-face combat, such as swimming, athletics, shooting, etc., the proportion of left-handed athletes is not high compared to their proportion in the population. However, for face-to-face combat sports that bring players closer together during competition, such as fencing, table tennis, and basketball, the proportion of left-handed athletes is much higher than the proportion of left-handed people in the population. In fencing, the most typical of combat sports, half of the men and a third of the women who reached the quarterfinals of the world championships between 1979 and 1993 were left-handed. The title picture is a photo of our national fencing team training. Left-handed people have dominated table tennis for many years, left-handed people have dominated tennis for a long time, and left-handed people are also particularly prominent in the NBA professional basketball game in the United States.

One explanation is that because the right brain, which specializes in sensing space and perceptual functions, controls the left hand, the left-handed person's movement style makes it easier to use visual and spatial perception functions, making their moves quicker, more accurate, and more powerful. Judging from the speed of nerve transmission, from "seeing" to "moving", right-handed people follow the route of "right brain hemisphere-left brain hemisphere-right hand", while left-handed people follow the route of "right brain hemisphere-left hand". It can be seen that in the process of nerve transmission, left-handed people take a shortcut. The brain transmits information to the left side of the body through the central nervous system 15 thousandths of a second faster than to the right side, which makes left-handed people more agile.