Maybe we can leave medical problems to experts in brain nerve and cognitive behavior to study. However, the following things have been confirmed to excite supporters:

1. Think things are different from others. Before writing or drawing, left-handed people often think about the images that have been formed in their minds. Many left-handed people will try their best to reassemble the fragmentary materials they can't remember into pages of pictures and remember them. Just like Buruli, the father of modern architecture, in the14th century, he could put forward digital graphics to explain how to build Florence Dome Cathedral. "I have thought about what it will look like when it is finished." He said that he beat the bidders from all over Europe.

Some people think that this ability explains why many left-handed people are outstanding in issues involving space and art.

2. Strong mathematical ability, strong visual perspective ability and strong spatial ability are conducive to the development of mathematics and architecture. 1990 Annet &； Manning's research found a correlation between right-handedness and lack of mathematical ability.

3. If a right-handed person has a close relative (such as a brother or sister) who is left-handed, then the memory of this right-handed person is stronger than that of the whole family who is purely right-handed.

According to a study by the University of Toledo, Ohio, right-handed people, close relatives of left-handers, show strong situational memory (such as where the keys are conveniently placed after entering the door). Although the semantic memory stored in the database (for example, the year from World War II to the end) is poor, it may be because the information itself has a left brain and the spatio-temporal background information of things has a right brain, so combining the two can enhance the situational memory. Researchers suspect that the corpus callosum that may connect the left and right brains is very large, indicating that your brain structure is a mixture of the left and right halves.

4. Left-handed people seem to perform well in sports that require quick response and correct spatial judgment. People who are more flexible and stronger with their left hand, left foot and left eye, especially in tennis, football and golf, often perform better than others. Tennis celebrities such as Naratinova, Connors, Mackenzie, etc.

Left-handed people also have an advantage, because right-handed people are not used to playing with him. Some left-handers can even switch to the right hand to swing or swing when necessary, which most right-handers can't do. Like fencing, a sport in which two people fight each other, left-handed people also have special advantages, and the proportion of winning the championship is very high.

6. People with strong left hand, strong right foot and strong right eye may have the problem of uncoordinated integration, which especially affects the swing action, because the line of sight may sometimes be limited. But it is beneficial to gymnastics, running, basketball and other games that require a strong sense of physical balance.

7. It is much more difficult for a right-handed person to do things with his left hand than for a left-handed person. Moreover, left-handed people are more willing to listen, accept or consider other people's opinions and ideas. This is related to the fact that left-handed people have been adapting to the environment all their lives, learning when to cross their bodies with their left hands or when to switch to their right hands, and overcoming difficulties is related to constant practice.

Thirdly, there are many related studies, but they have not yet reached the final stage, including:

8. Poor autoimmune system, including asthma, migraine, diabetes, autism (65% of autistic patients are left-handed) and learning disabilities. However, in 199 1, another study refutes this theory.

9. The School of Medicine of the Royal Free University of London recently suspected that left-handed people are twice as likely as right-handed people to suffer from inflammatory intestinal diseases (such as Crohn's disease, with symptoms of pain, severe diarrhea, intestinal bleeding, weight loss and fever).

1860 French surgeon Brock said that the left brain of left-handed people is underdeveloped, which affects their language ability. However, some people retort that it is too simplistic and irresponsible to draw the relationship between breakup and brain in this way.

/kloc-many studies in the 1970s found that most left-handed people, like others, have the same specialized language area in their left brain, and only a small number of left-handed people have different language areas. So using the left hand will not cause literacy or arithmetic difficulties. If the child has a problem, find out the real problem.

10, left-handed people live 9 years less than right-handed people on average.

1 1. American psychologists Kong Rong and He Kun suspect that the average life expectancy of left-handed people will be 9 years shorter than that of right-handed people (66 years versus 75 years). When this statement came out, the group was in an uproar.

Later, it was refuted by the research community that they used fallacious research methods to forcibly support their assumptions (left-handed people drive cars designed for right-handed people, operate backhand, and respond in an emergency). Kong Rong and He Kun asked their families about 1000 car accident victims in a small town in southern California, whether the victims were left-handed or right-handed, but only three of them became left-handed, and there was no way to prove whether these three people really died in a car accident because of being left-handed.

The enlightenment of left-handed phenomenon to us

Idle left hand is a huge waste of human resources.

Only by training the left hand and tapping the potential of the right brain in perception, intuition and thinking in images can we be invincible in the competition in the computer age.

The use of the left hand and the exercise of the left limb can strengthen the body, benefit the brain and improve intelligence, strengthen the body and prolong life.

For left-handers, some people take it easy, while others suffer for life. But in any case, this is an objective thing. Left-handed people do account for a considerable proportion of the population. Because of this, the research on left-handed people has become increasingly active in recent years. This kind of research has gone far beyond the investigation of customs and gone deep into the fields of brain function, genetics, cytology, molecular biology and so on. This in-depth study may trigger a new brain revolution.

The human body is not completely symmetrical. Everyone has hands, feet, even ears and eyes, and their strength is different. The eyesight and hearing test in the physical examination report rarely have the same data, just like the different sizes of feet, which always makes it more troublesome to buy shoes. So, why make a fuss about lefties?

Edit this left-handed celebrity

Politicians and militarists

Alexander the Great, king of ancient Greece and Macedonia. Established a huge empire from the Indus River in the east to the Nile and the Balkans in the west, spanning three continents: Europe, Asia and Africa.

Caesar, an ancient Roman politician, commander-in-chief and writer, was famous for his dictatorship.

Napoleon, emperor, strategist and commander-in-chief of the First French Empire.

King Louis XVI of France died in the guillotine during the French Revolution.

Queen Elizabeth I.

Queen Victoria, the Queen of England.

King George II of England, the wise monarch of England.

The Pharaoh Ramses II of the first 19 dynasty in ancient Egypt created the most prosperous period in ancient Egypt.

According to the legend in the Ehud Bible, the left-handed enemy chief of ancient Israel was the hero who liberated Israel from alien rule.

Charlemagne, king of Caroline dynasty, Charlemagne. Carry out the expansion policy, so that the imperial territory is adjacent to the Atlantic Ocean in the west, the Elbe River and Bohemia in the east, the North Sea in the north and central Italy in the south.

Jia Benji, the emperor of the Inca Empire, experienced the most glorious era of the ancient Inca Empire.

Elizabeth II is now the Queen of England.

George VI was the king of England during World War II.

Joan of Arc is a French heroine and a fighter against the British invaders.

Mahatma Gandhi, father of India.

Churchill was the British Prime Minister during World War II.

Israeli Prime Minister Benjamin Netanyahu.

Callahan, British Prime Minister.

South African President De Klerk.

Castro, Cuban leader.

Singapore Prime Minister Lee Hsien Loong.

Garfield, 20th president of the United States.

Hoover, the 3rd1president of the United States.

Truman, the 33rd president of the United States.

Ford, the 38th president of the United States.

Reagan, 40th president of the United States.

George Bush, 4th1President of the United States.

Clinton, the 42nd president of the United States, just added a little more gossip.

General Patton was a famous American general in World War II.

General Powell, an American general and former Secretary of State, is famous for directing the Gulf War.

General schwarzkopf, American general.

Scientists (physicists, biologists, etc. )

Einstein, a physicist and proposer of the theory of relativity, won the Nobel Prize in physics.

Newton, a physicist and mathematician, founded the theory of calculus and discovered the law of gravity.

Franklin was a famous American scientist and national activist. The famous kite experiment proves that lightning is a cloud discharge phenomenon.

The discoverer of Marie Curie radium, two Polish female scientists who won the Nobel Prize.

Li Zhengdao, a famous physicist in China, put forward the theory of parity non-conservation and won the Nobel Prize in physics.

Linus Pauline, a famous chemist and social activist, won the Nobel Prize in chemistry and the Nobel Peace Prize respectively.

August Picard, inventor of deep-sea submersible.

Albert schweitzer was a famous French doctor and missionary in the18th century.

British mathematician Allen Tanning is the founder of computer science.

August Picard, discoverer of stratosphere.

Astronaut Edwin Bartz Aldrin.

Astronaut Wally Hinla.

entrepreneur

Ford, the king of cars, created a country sitting on wheels with his left hand.

Founder of Oz Motor Company.

Gates, the founder of Microsoft, is the richest man in the world.

Forbes, the king of American media.

John rockefeller oil magnate, the first billionaire in history.

David rockefeller, an American banker, is the head of the Rockefeller family in finance.

Guo Shina, President of IBM.

Founder of Davis Cup Tennis Open.

Allen Fent, a famous TV manufacturer.

artist

Leonardo da Vinci was a great painter, scientist and engineer in the Italian Renaissance.

Michelangelo was a sculptor, painter, architect and poet in the Italian Renaissance.

Raphael, Italian Renaissance painter and architect.

Beethoven, German composer and pianist.

Picasso, Spanish painter. His paintings are very tall now.

Bob Dylan, a famous American folk poet, was once listed as the man of the twentieth century by Time magazine.

Bach is a famous German composer.

Austrian musician Mozart.

litterateur

Mark Twain, a famous American novelist.

Goethe poet.

Heine poet.

Ni Kuang, pen name Wesley, is a famous science fiction writer in China.

Jean Jeanette is a famous French writer and playwright.

Akihara was the most successful commercial cartoonist in Japan in the 1990s.

Shigeru Miyamoto is a Japanese video game manufacturer and the founder of Nintendo's game culture.

Actor (singer)

Chaplin's master of comedy.

Marilyn Monroe is a famous porn star in Hollywood.

Garbo is a famous actress in Hollywood.

Robert De Niro Hollywood movie star.

Jimi hendrix, an American black rock musician, is a talented electric guitar player.

Paul mccartney is one of the soul figures in The Beatles, England.

Liu Laogen, a famous artist in China, Zhao Benshan, is still eating with his left hand.

Xu Zhian, the king of Hong Kong singer.

China's famous singer Wang Leehom.

athlete

Gehlsen and Sweden, 3 1 World Table Tennis Championships singles champions.

Park Young-soon, North Korea, the women's singles champion of the 33rd and 34th World Table Tennis Championships.

Xiao Ye Chengsi, Japanese, singles champion of the 35th World Table Tennis Championships.

China, Cai Zhenhua, team champion of the 36th, 37th and 38th World Table Tennis Championships.

Gated France, the singles champion of the 42nd World Table Tennis Championships.

Wang Tao China, team champion of 43rd and 44th World Table Tennis Championships.

Liu Nankui and South Korea, singles champions in the 24th Olympic Games.

China and Chen Jing, singles champions in the 24th Olympic Games.

China, Wang Nan, champion of women's singles and women's doubles in the 27th Olympic Games, champion of women's singles and women's doubles in the 45th and 46th World Table Tennis Championships, and champion of women's singles, women's doubles and mixed doubles in the 47th World Table Tennis Championships. Runner-up in women's table tennis singles and champion of women's team in 29th Beijing Olympic Games.

Jensen China, champion of men's doubles in the 27th Olympic Games; Men's doubles champions in the 46th and 47th World Table Tennis Championships.

China, Qin Zhijian, mixed doubles champion of 46th World Table Tennis Championships.

Jackson, the former head coach of Bulls, was a famous left-handed player in NBA.

Wang is the first China basketball player to land in the NBA.

Korean volleyball player in Jin Shizhen, "Asia's first attacker" of the Asian Volleyball Federation.

Diego maradona, a famous Argentine star, participated in the World Cup four times and led the Argentine team to win the championship.

Milu, the head coach of Chinese national football team, plays with his left foot as a football player.

Shen Xiangfu, the head coach of China's national football team, plays with his left foot as a football player.

Zhao Jianhua, a famous badminton player in China, won the Thomas Cup, World Championships, World Cup, All England Badminton Open and World Grand Prix Finals.

Chen is a famous left-handed young badminton player in Malaysia. He is the first player to win two consecutive championships in the history of the World Youth Badminton Championship and a two-time champion.

Yang Yang is a famous badminton player in China.

American tennis star mcenroe won the US Open four times and Wimbledon three times.

Seles, a famous American tennis player and former Yugoslav tennis player, has won the world's four major open tennis championships nine times.

Navratilova tennis queen, Czech naturalized in the United States. Won the singles championship with 18 times in the four major open competitions.

Ivani Savage, Croatian Powerball player, singles champion of 200 1 Wimbledon Grand Slam.

Koda, a famous Czech tennis player, 1998 won the Wimbledon singles title.

A famous female fencer in China, Luan Jujie.

Mark spitz, winner of six Olympic swimming gold medals.

Mike Will, a Canadian, won the 2003 American Masters Golf Championship and four major golf tournaments.

Bob charles 1963 British Open Golf Champion.

Mueller, American boxing champion, 1994 World Boxing Association and International Boxing Federation.

Senna Brazilian racing prince.

Ginobili, an Argentine basketball player, plays for the San Antonio Spurs in the NBA and is a champion of the 2004 Olympic Games.

Rafael Nadal, a famous Spanish tennis player, ranked first in the world and won four consecutive French Open titles.

China badminton player Dānlín won the badminton men's singles championship at the 2008 Beijing Olympic Games and now ranks first in the world.

China table tennis player Guo Yue (see photo) won the third place in women's singles at the 2008 Beijing Olympic Games, and was a champion member of the women's team. Women's singles champion, mixed doubles champion and women's doubles runner-up in 2007 World Table Tennis Championships.

other

Prince Charles may become king of England in the future.

Prince William Jr. may become king of England in the future.