Dad likes women to have girls, and mom likes men to have boys. Is it accurate?
There are 23 pairs of chromosomes in human cells, of which 22 pairs are autosomes and 1 pairs are sex chromosomes. The male sex chromosome is XY and the female sex chromosome is XX. Sperm changes from diploid (46) to haploid (23) in the process of maturation and division, resulting in two kinds of sperm: one containing X chromosome and the other containing Y chromosome. Eggs will also change from diploid (46) to two haploids (23) during maturation and division, but all eggs only contain X chromosomes. In the process of fertilization, if the egg is combined with sperm containing X chromosome, the sex chromosome of the pregnant egg is XX and eventually develops into a girl; If the egg is combined with sperm containing Y chromosome, the sex chromosome of the pregnant egg will be XY and eventually develop into a boy. Therefore, the sex of the fetus is determined at the moment when sperm and egg combine, which is immutable. The probability of each child having a boy and a girl is 50%, which makes the proportion of men and women in the population roughly equal. At present, there is no scientific basis for the intelligence of boys and girls and who is smarter, mom or dad.
So what can I do to choose to have boys and girls? Many folk remedies say that there are ways to improve the probability of having boys and girls.
1, giving birth to a daughter without wearing a radiation suit.
It has always been said that most people who work in hospital radiology give birth to daughters, and some people think that men who are exposed to radiation frequently will lead to the death of Y sperm with weak vitality first, which leads to a particularly high probability of giving birth to girls. Is that really the case? The reporter interviewed radiologists and experts in several hospitals, and they all said that this statement has no scientific basis. An expert from the imaging center of a large hospital said: "There may be more girls or boys in a certain period of time or in a certain area, but on the whole, the ratio of boys to girls of our department staff is relatively balanced, and there is no phenomenon that most of them are daughters." According to experts, if it is not properly protected, X-rays will damage the immune system and blood system, but will not affect boys and girls.
2. Pregnant mothers are prone to have daughters if they don't eat breakfast.
British scientists have found that women who eat more high-calorie foods during pregnancy and often eat cereal for breakfast can increase the chances of having boys. The research was jointly completed by Oxford University and the University of Exeter, and the related research report was published in the Journal of Biology of the Royal Academy of Sciences. They surveyed 740 first-time pregnant women in Britain and asked them to provide food records before and at the beginning of pregnancy. It was found that 56% of pregnant women who ate high-calorie food every day during pregnancy later gave birth to boys, while only 45% of pregnant women who ate low-calorie food gave birth to boys. The study also found that 59% of pregnant women who ate cereal every morning gave birth to boys, while only 43% of pregnant women who seldom or never ate breakfast gave birth to boys.
3, pregnant women eat more, easy to have a baby boy.
A recent study by foreign scientists found that pregnant women who eat a lot during pregnancy usually give birth to a baby boy, and the baby boy born at the same time is heavier than the baby girl. The researchers observed and studied 244 pregnant women for 6 months. The results show that testosterone secretion from male children's testicles is the direct cause of the large food intake of pregnant women who give birth to boys, which means that pregnant women with large food intake are more likely to give birth to boys.
Experts said: It is a common phenomenon that newborn boys are heavier than girls, which will help to identify the sex of babies during pregnancy. Pregnant women who give birth to boys consume more than 10% calories and more than 8% protein during pregnancy. Pregnant women must supplement energy by absorbing a lot of carbohydrates and animal and vegetable fats. The research data also shows that the baby boy in the embryo needs more nutrition and energy than the baby girl.
4. Giving birth to boys and girls is related to ancestral tablets.
Giving birth to a child is fragrant, which is related to the ancestral memorial tablet of Yangzhai. Therefore, the incense should not be placed under poles, sharp weapons or beams. If it is necessary to combine it with rice, it is generally not undesirable.
Then there is the bedroom and the kitchen (where the kitchen cooks). These two places can't press the beam, but they have to rely on the wall. The so-called two ends don't touch the wall, and so does the stove. If there are no problems above and you can't get what you want, you can try to pray. In addition to paying homage to the Empress, Guanyin Bodhisattva and Baosheng Emperor, sometimes we have to make a wish. Sometimes it's hard to have a boy in the first half of the year. Pay attention when you are pregnant. Nothing for nothing. Have a son first and then see how to have a boy and a girl. Generally, it is better to go on a diet. For example, boys (husbands) eat more meat and girls (wives) eat more fruits and vegetables.
From the perspective of feng shui, it is whether a house is [four positive] that affects the birth of boys and girls. When a room is square, the most important thing is to look at the east first, because the east represents the eldest son, the eldest son in the family. If there is no oriental horn, or the oriental horn is sunken, or the object is misplaced, the family can't have a boy. At present, this view has not been scientifically confirmed.
It is very unlikely that parents who smoke will have a boy.
According to Russian media reports, scientists have found through long-term follow-up research that couples who smoke before and after pregnancy are less likely to have boys. Experts found through clinical research that if the father smokes more than 20 cigarettes a day and the mother doesn't smoke, the possibility of having a boy is far less than that of having a girl. If both husband and wife smoke, the possibility of having a boy becomes even smaller.
At present, scientists are not sure why smokers are less likely to have boys, but they suspect that sperm carrying chromosomes that determine the birth of boys are more susceptible to cigarettes. They believe that the Y-chromosome sperm that decides to have a boy has a small head and a long tail, and swims fast, but its acid resistance is poor, and it is easy to be injured and even killed by tobacco poison, while the X-chromosome sperm that decides to have a girl has a big head and a short tail, which is slow to move, strong acid resistance, low sensitivity to tobacco poison and is not easy to be hurt, but the specific mechanism is still a mystery, experts said.
6. Pregnant women with cats may be more likely to have boys.
If a woman wants to have a girl, don't touch the cat. It sounds like the most ridiculous story, but according to recent research by scientists, pregnant women infected with a common cat parasite are more likely to have boys. This parasite, Toxoplasma gondii, has infected about 15% of British people, but the infection rate has reached 80% in some countries. It is spread by infected cat droppings and also exists in raw pork or beef.
Czech researchers collected the medical records of 803 newborns from 1996 to12004, and analyzed the information about the mother and the baby, including the sex of the baby, the number of previous pregnancies of the mother and the Toxoplasma antibody level in the mother. Studies have found that women with high antibody levels-actually infected-are more likely to have boys. In most people, the birth rate of boys is about 5 1%, but the probability of giving birth to boys by women infected with Toxoplasma gondii is as high as 72%. Toxoplasma gondii can cause birth defects in newborns and may also lead to abortion, but the relationship between Toxoplasma gondii and baby sex has never been confirmed before.
7. The occupation of pregnant women also affects the sex of children.
New research shows that engaging in masculine occupations such as engineers or accountants will greatly increase the chances of pregnant women giving birth to boys. Similarly, if you are engaged in a female occupation such as a teacher or a nurse, then the baby's gender is likely to be female.
According to statistics, the ratio of male to female born in Britain is 105 100. The London School of Economics reached this conclusion through a survey of 3,000 people in different industries and published it in the Journal of Theoretical Biology. Satoshi Canazza, a psychologist at the University of Canterbury in New Zealand, is the leader of this research. He found that among the male professionals such as engineers, the ratio of boys to girls is 65,438+040, while that of women is 65,438+000. Among the female professionals such as nurses, the ratio has become 100 to 135. The Sunday Times quoted an expert in evolutionary psychology as saying that women who are engaged in masculine occupations have higher levels of testosterone in the uterus during fertilization, which increases the possibility that the fetus is male.
8. Ancient legends about boys and girls.
In ancient Greece, people believed that if they conceived in the night when the north wind blew, they would have a boy, and if they conceived in the night when the south wind blew, they would have a girl. /kloc-in the 0/7th century, French aristocrats thought that in order to get a male heir, the left testicle was ligated or simply cut off during sexual intercourse. In ancient Babylon, it is generally believed that the birth of boys and girls depends on whether the moon has a halo on the day of conception. In the Boer tribe, it is believed that boys get pregnant on even days and girls get pregnant on odd days.
9. The secret of having boys and girls in Europe
There have always been many secrets of having boys and girls in Europe, which sounds strange: if you want to have girls, couples can try the following methods: First, move to Scandinavia. Men should be pilots or astronauts, younger than women, and women should be over 40 years old. Men can also be pizza chefs or restaurant owners. He likes to wear tight underwear. It would be better if couples are stressed. Pregnancy should be carried out in winter, or in rainy days, preferably during the day, or even on a full moon. If you can put a wooden spoon under the bed, it will be even more foolproof.
If you want to have a boy, it is best for the husband and wife to live in Italy, Greece or Spain. Women are under 20 years old and men are older. Women should also control men. She should be a very enterprising woman, and men are housewives who like to wear boxer shorts and drink coffee. Such couples often sleep together in the middle of the night, and both of them are full of sexual interest. In the long summer night, women should sleep on the right, and men should sprinkle salt on the bed before making love. It would be more ideal if another quarter of the moon hung in the sky.
10, South African scientists confirmed the theory of "salty men and sweet women"
Whether a woman gives birth to a boy or a girl is related to the yin and yang of her own constitution, but it does not depend entirely on it. There are many factors, such as the pH of the body, the vitality of sperm, the age, stress and living environment of both parties. Therefore, the scientific reasons for having boys and girls through diet control are not sufficient and can only be referenced.