[REVIEW] "Men and women are different" is an old saying in life, men and women never seem to be present in the Earth's poles, there are different interests, temperament, favorite movies of different styles, different flavors of food. In fact, the gender gap is far more than that. These differences lead to itself the underlying causes of these differences and has attracted the interest of scientists. Inventory for everyone here some interesting gender differences between men and women based on scientific research.
Chromosomal DNA and is the carrier of the gene, human cells have 23 pairs of chromosomes, including 22 pairs of autosomes and one pair of sex chromosomes. Including the sex chromosomes X and Y chromosomes determine the sex of mankind. A pair of male sex chromosomes XY, and females XX. Life on our planet, with more than 70 billion different races, different color, different personalities of the population, but in the end after all, nothing less than the two categories: men and women.
Mate selection criteria: Male Female appearance likes to watch hi smelling?
The scientific community has been considered the heart of human affection is based mostly on the United States. However, a study showed on how to choose a partner, not only the sense of smell also plays an important role. This latest study surveyed choosing a partner with the "major histocompatibility complex genes (MHC)" possible links. Such genes are not the same for everyone, it can help our immune system to distinguish between own cells or foreign cells, in order to avoid inbreeding, and by itself has the largest selection of different "major histocompatibility complex genes" partner to the greatest possible growth of the next generation of excellent genes. As a result, there will be between the parents more opportunities to make up for each other's deficiencies through gene. But we do not know each other "major histocompatibility complex genes" when and how to sort through potential partners some hints of it? So far, most research has focused on smell, especially in rodents them, and has confirmed the basic assumptions.
Coincidentally, the University of Chicago researchers noted that women prefer to savor and appreciate their genetic similar but not exactly the same man. The researchers tested 49 unmarried women, so that they heard some of the man through the day T-shirt, found that women are like father like men appreciate, not appreciate the genetic mother.
Prior to this, a study Niuyuebulang University also showed that most men care about a woman's eyebrows, women are most important to the man who issued the odor. Researchers at Brown University, more than 230 male and female students as the research object, the orientation of their choice of spouse, found that women will appreciate the male spouse basis, because the immune system reflects appreciate everyone's health, women have a natural ability with different body odor, antibody screening different men, so that they have the greatest opportunity to nurture a healthy next generation.
The male heterosexual appreciate pursuit just in general, they will focus on female appearance, especially eyebrows. Especially male Interested eyebrows tall lady, Liu Mei falls most hated women, perhaps because women in the event of favorite men inadvertently Mei Yang smile, outgoing and interested in receiving information exchanges with each other Therefore, men will subconsciously choose the eyebrow line Praise of the opposite sex.
Those strange research inventory: those based on gender studies
Girls have a sweet tooth specific gene
Unable to resist the temptation of sweets, is no longer a girl's fault. The new study sweet tooth girl found a scientific basis, they had this behavior, because a particular gene is caused.
When the girls help control the release of dopamine gene is abnormal, they can not resist the temptation of sweets. How many and human dopamine receptor genes, lifestyle, external stimuli have a certain relationship. The brain's dorsal striatum releases the neurotransmitter dopamine as a reaction to the food made, and dopamine release and the degree of pleasure that the food brings correspond. Fat girl, the kind of reaction due to less dopamine in vivo dopamine receptor seems to have become a sluggish, causing them to eat too much to make up for the pleasure of decline. Brain imaging techniques to observe the dorsal pattern in obese girls are less active, type A1 carry striatal dopamine D2 receptor gene's response to the most slow milkshakes and other sweets. The study also found that genetic, mental health but also to promote people to increase appetite, leading causes of obesity. Therefore, the next step is to determine the girls have this problem, to look at early intervention and prevention of obesity.
Japanese media said the men more likely than women to be struck by lightning
In reality, although the chances of being struck by lightning is very low, but after reading the manuscript, men had better pay attention. According to a survey of Japanese media Shaomei Guo show, "was mine hack" who among men accounted for 82%. Why is there such a result?
Record Japan website analysis following three kinds of reasons: First, the lack of male awareness of the risk of thunder. The main reason is that men underestimate the danger of being struck by lightning, do not find a safe place to hide. Second, men like summer outdoor activities. In the summer people (especially men) like at the beach, outdoor activities, so the chance of lightning encounter increased a lot. Third, love fishing golf. According to the survey, fishing by lightning had higher chances of golf. According to the analysis, this is because of the high risk awareness of their golf-loving people of the lightning, life safety will be safeguarded. So summer evening rainstorm often happens, thunder abnormal weather, men who do not negligent, hear thunder preferably immediately hide.
Small testes men are more willing to take care of children
US findings of Emory University scientists have obtained show that the size of the size of men's testicles with his active participation in activities related to the extent of child-rearing.
Researchers say, small testes men tend to be more likely to go to change the baby's diapers, feeding, or give the child a bath. The researchers also analyzed the children to see their father at the time of brain MRI scan picture, scan results found with different testicular size and appear different. Viewing photos of their children when received brain MRI scans, the reaction testicular smaller man appeared in the brain regions associated testicle larger than man. The researchers believe that the size of the testes to produce testosterone perhaps through the influence of man's behavior. Zoology theory have appeared, animal testicles the size of its mating with the level of a great relationship, with large testicles males tend to have more sexual partners.
Woman tears make men calm
"Tears are a woman's weapon," it was like a knife, straight in your heart the softest place: a woman's tears may indeed contain some kind of "chemical messenger", can communicate through the sense of smell, so that a man calm.
Cognitive neuroscientists study the Israeli Weizmann Institute of Science found that: women's tears contain can reduce male "sexual arousal" chemicals. Why the tears turned out to be suppressed "sexual awakening" in it? Evolutionary psychologists and neurobiologists think that nothing contradictory. Tears are crying product, aimed at weakening the other crying aggressive or offensive, and the testosterone and the general hostility and aggression together. Therefore, reducing the attack is likely to be an adaptive behavior of the evolutionary process. However, the research paper does not tell us what this substance Yes. And, why do not the scientists identified the chemical directly from the tears it? In fact, these molecules are extremely elusive and Trace, I want to identify this molecule is difficult to imagine, even if the tears are not difficult to collect.
Why do girls learn the language faster and more authentic?
In daily life, many people have found that both the babbling or grow up learning Mandarin or learn a foreign language, girls than boys learn faster and more authentic. This is how to explain the science?
February 2013, scientists at the University of Maryland in the study of young rats and sounds related brain regions found male rats contained Foxp2 (foxhead box protein P2) Language protein than female rats up to twice as higher. And this results in humans, on the contrary, the researchers analyzed 10 boys and girls. The results show, Foxp2 girl with a brain protein region 30% more than boys, and this brain region critical to language. Recently, American neurobiologist Johns Hopkins University School of Medicine have found that Foxp2 SRPX2 a "molecular chaperone" is called to help Foxp2 perform its functions. Is the first gene SPRX2 Foxp2 having a clear nerve function. Speech disorder scientists this discovery will bring new genetic treatments, but also for the boys to learn a foreign language well provide a "cover."
Women more than men noble morality
According to the British "Daily Telegraph" reported that the British philosopher Roger? Steyr for about 60,000 volunteers in 200 countries worldwide post "moral DNA test," found that women are more noble than men moral.
Reported that the volunteers asked about some of the problems with work and family life, including the judge whether they honestly think people around and so on. Steyr, said: "Women are usually based on what the impact caused to others to make a decision, this result will usually produce better decisions and more men according to their own interests to make a decision.."
Steyr also found that moral strength will change with age and change. "Obedience" as she grew older and smaller, more people will use rational, fast until the age of 60, people's "intellectual and moral strength" will reach the peak.
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