Yesterday is August 13th, do you know what day is it? It just is international Left-Handers Day! Yes, no doubt, this “left-handed” is what you know “left-handed” – people who used to use the left hand. On August 13, 1975, a group of leftists in the United States established an organization called the left-handed international organization, envisioning the union of the world’s leftists together for the rights of left-handed persons. In 1976, the organization held a celebration and identified August 13 as an international left day. It is understood that about 6% to 13% of the world’s people are left-handed, and this figure is still on the rise.
Is there a left-hander in your friend? I think there is. Do you think they are smarter? In 2010, 895 samples were studied by scientists in Australia, the UK and New Zealand through the Brain Research and Integration Biology Network database. The conclusion is that the general cognitive ability of left-handed and right-handed persons is not very different, and those who are left and right-handed will be smarter.
Will left-handed inheritance? Yes. If the parents are both left-handed, then the probability that child is left-handed is 26%. If one of the parents is left-handed, then the probability that the child is left-handed is 19%. If the parents are both right-handed, then the probability that child is left-handed is 9%. British Queen, Queen Victoria, King George VI and Queen Elizabeth two-room mother Queen Elizabeth, Prince Charles and Prince William are all left-handers.
Those famous scientists, artists are actually left-handers? Yes, such as Relativity author Einstein, Gravitational Law Finder Newton, Radar Finder Marie Curie, Italian Renaissance great painter Da Vinci, German composer and pianist Beethoven, Spanish painter Picasso and American NBA coach Phil Jackson. US President Barack Obama is also a left-hander.
Let us work together to care for left-landers.