Collect everyone's curious brain knowledge, and organize valuable learning materials for the reference of friends who have been on the road to learning.There has always been a saying that men are smarter than women, which makes people indignant, is there any scientific basis for it?
As early as ancient Greece there were all sorts of bizarre accounts of the differences between men and women, and all of this was unfounded:
Aristotle proposed that boys would be identified around 40 days of pregnancy, while girls would be identified around 80 days of pregnancy.
Empedolec believed that boys were born when the womb was hot, and girls were born when the womb was cold.
This is all due to the early bias in the study of gender in the brain, and it was not until the mid-19th century, when anatomy began to take off, that scientists began to express the argument that there were indeed differences between male and female brains, and not a little!
Through the dissection of the deceased, some scientists have proposed that the size of the prefrontal lobe in women, that is, the part related to intelligence and cognition, is about 1% smaller than that of men. Some scientists say that women's brains are smaller than men's, and they have come to the conclusion that women's brains are about 140 grams smaller than men's. And to show that men are smarter than women.
Is this true?
The statement about the size of the prefrontal lobes of men and women was immediately criticized as having a limited sample of men and women, so the results must have been differentiated.
At that time, there was an advocate of feminism, Helen Hamilton Gardner, who questioned it, and he asked rhetorically, if it is only compared according to size, the brain of a blue whale is much larger than a human brain, why not see that they are smarter than humans?
In fact, there are differences
Back in 2013, researchers conducted brain imaging experiments on nearly 1,000 adolescents and found that there were sex differences in the connections of nerves in the brain.
Male connections are more common in the inner hemispheres of the brain, while female connections are more likely to occur in the connections between the two sides of the brain. At the time, researchers speculated that it might have something to do with the fact that men excelled at a single task, while women excelled at many things at once.
In 2018, a study counted brain imaging data from more than 5,000 people and found that the surface area and volume of the cerebral cortex in men were larger than those in women, and the thickness of the cerebral cortex in women was thicker.
Do these distinctions have a direct impact on intelligence?
The researchers showed that there were more or less differences between men and women in these two studies, but no significant differences were found in the brain when dealing with certain verbal reasoning tasks.
Immediately afterward, the researchers found that men had an average of 10% more brain volume than women, and correlated it with IQ testing.
The surprising conclusion is that on a 125-point criterion for the number of intelligence, the number of men is twice as high as that of a woman, and on a 150-point criterion for the number of intelligence, a man is 5 times as much as a woman5 times. From this, it can be concluded that men are indeed smarter than women.
Most of the more complex tasks in life are done by men, and most of the Nobel Prize winners are men, and the innate advantages of men allow them to survive better.
Male compatriots do not need to have too much superiority, although intelligence wins in biology, but the intelligence level of adults will also be affected by factors such as education, environment, diet and so on, therefore, men of the same age and physical fitness may not be smarter than women.
I am Shanshan, a Jiangnan woman who aims to retire at the age of 40. By following me, you are increasing your knowledge and improving your learning ability! In this chaotic world, I hope to meet you who are pure, you who insist on your dreams, you who continue to recharge, and watch the infinite beauty of this world!