Is there a scientific basis for boys are born prematurely, girls are procrastinated ?

In daily life, many people must have heard of the saying that boys are born prematurely and girls are in the nursery month, this statement is mainly because the boy is very active in the mother's belly, very dishonest, so in the stage of slow maturity, it is likely to cause the mother to give birth early, girls are naturally quieter, so there may be a few more days in the mother's belly. This is just a phenomenon that people often say that there is no scientific basis, and there is another theory that because the hormone levels in the bodies of boys and girls are different, and the speed of development in the body may be different, so the time of development to the same size will be faster for boys, so it may be that pregnant boys will give birth early, so is there any scientific basis for such a statement?

In fact, for such a statement, many Western scientists are constantly researching, and there are certain theories to support such a statement, whether it is a premature or late infant, the shorter the mother's pregnancy time, the higher the proportion of babies born in Nanjing. In Norway, a study analysed data from the analysis of birth data of more than one million babies and found that the ratio of male to female babies was 1:17 in many full-term babies, and in France, a study found that the proportion of male fetuses decreased with the number of weeks of pregnancy.

Therefore, there is still a certain scientific basis for the above statement, and the main reason may be that boys develop faster, because male and female babies have different hormones, and the growth rate in infancy is very different, and male babies may not be honest in most cases, resulting in premature birth.

However, whether it is a boy or a girl, it is necessary to pay attention to the situation during pregnancy and go to the hospital for regular check-ups, after all, the prenatal check-up has been very perfect, and the baby's development and health can be checked during each prenatal check-up. But even if there is such a scientific basis, the pattern has not been completely found, so it is still necessary to maintain the mentality and not force the birth of a boy or a girl.

Some. Because the gender of the child is different, the hormone of the pregnant mother is different, according to some studies, after the pregnancy of the baby boy, the secretion of hormones will make the fetus grow faster, and the baby girl will grow slower.

There is no scientific basis for this statement, because there are many reasons for a child to be born prematurely, and it does not lead to a premature birth because the child is male or female.

There is no basis for such a statement, and such a statement is also very superstitious, and the occurrence of premature birth has nothing to do with boys and girls.

In fact, the due date is only an approximate time, and it is normal for the fetus to be born about two weeks before and after the due date. Of course, although there is no scientific basis for the saying "boys are born prematurely, girls are lazy", there is a certain probability, which is why this saying has been widely circulated for so long. In that case, how can a boy be "born prematurely", and how can a girl be "lazy"?

Some pregnant mothers have weak physical fitness, and the digestion and absorption of nutrients are not enough, and the nutrients that can be given to the baby will not be enough, which can easily lead to the lack of nutrients in the baby and affect the development, which will obviously lead to premature birth. On the other hand, some pregnant mothers digest and absorb well, and the food expenses during pregnancy are also very rich and <>

The baby can be given excellent development conditions, the functional standards of the pregnant mother itself will be better, and the baby will be "unwilling to leave the mother's belly too early". Although folk customs have always been popular in many ways to identify the sex of the baby, which uterine clearance surgery gives birth to male and female tables, which PH pH, which abdomen looks, and which B ultrasound singles, but they are just some "experience sharing" by everyone, and there is no basis in medicine. We know that the purpose of a baby's fetal sex is to be determined by chromosomes.

The chromosome composition of the boy is xy, and the chromosome composition of the female baby is xx.

The sex chromosomes of the baby depend on the sperm and egg at the moment of union, in other words, the sex of the baby's fetus depends at that moment, and it has nothing to do with the shape of the baby and the shape of the belly. In terms of the regularity of fetal growth and development, there is no view in medical books that boys develop rapidly and little girls develop slowly. The uniform regularity is 37 weeks of term, and after 37 weeks, the fetus will start to mature on its own.

Generally speaking, the fetus grows and develops earlier during pregnancy before the ovulation date, and it is very easy to be born before the due date. If you conceive after the date of ovulation, the fetus grows and develops later, and it is very easy to be born after the due date.

The rate of fetal growth and development is the key factor in determining whether the expected date of delivery will be earlier or later. Exercise status during pregnancy. If you exercise regularly during pregnancy, the fetus will enter the plate earlier.

Special circumstances. If there is a collision or other unexpected element in the later stages of pregnancy, it will cause the due date to be early. As the so-called melon ripens and falls, the fetus matures and the embryo continues to age, and the fetus will release the pregnant woman's delivery data signal to the pregnant mother into the pregnant woman's delivery.

The reasons for endangering the perfection of the fetus have nothing to do with the sex of the fetus, only the health status of the pregnant mother during pregnancy and the supply of nutrients are correlated.

There is no basis for affecting the growth of the fetus and the pregnant woman is directly related, the surrounding environment, mood and diet, these have a key role.

There is no scientific basis, and it is related to the birth and safety of the fetus, and it is related to the development of the child.

There is no scientific basis, and it is related to the birth of the baby and the physical condition, and the development of the child.

In real life, we often hear the old people in the family mention that boys are born prematurely and girls are procrastinated, which means that boys are usually born before the due date, but girls are born later than the due date, so why are boys easy to give birth early? Is there any scientific basis for this claim? Let's take a look!

The due date is inherently inaccurate.

Although the due date is scientifically calculated, the average time is only calculated according to the gestation time of human beings, that is, the month of the last menstrual period is added to 9, and the date is added to 7 (if the months add up to more than 12, it becomes minus 3), so there is also a certain error in the due date. In ancient times, it was speculated that women's menstruation depended on the fullness of the moon, and naturally there would be a certain amount of error, and due to the accumulation of a long time, many people thought that boys would be born prematurely and girls would be born later.

There is a common misconception about the concept of preterm birth.

Many people believe that as long as the child is born before the due date, it is premature, in fact, this understanding is wrong, according to the medical point of view, as long as the baby is born at 37-42 weeks is full-term, not premature. In other words, this "premature birth" and "procrastination" were originally a vague noun. As a result, after hearing this statement, people naturally think that the birth of a boy must be born prematurely, and the birth of a girl must be delayed.

There is no scientific basis for the susceptibility of boys to preterm birth.

There is no scientific basis for the claim that boys are prone to preterm birth, and in real life, although there have been cases where boys are born earlier than their due dates, there are many reasons why pregnant women give birth early, not because they are pregnant with a boy. The sex of the fetus in the womb is judged by chromosomes, which are 46xy for boys and 46xx for girls. There is no relationship between the gender and the due date, so whether a child is born early or late, it cannot be used as a basis for the child's gender.

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Boys do not report early, and there is no relationship between the time of birth and the gender of the child. If a pregnant woman accidentally falls on a branch during the third trimester, the fetus will be affected and the fetus will be born early. Therefore, whether the child will be born prematurely is actually very related to the pregnant woman, if the pregnant woman does some bad actions in the third trimester, it will affect the child's body and let the child be born early.

Therefore, boys are not born prematurely, and girls are not procrastinated.

I also checked on the Internet and found that boys would not be reported in advance, and girls would not be born after the due date. Because there are a lot of parenting bloggers who follow on the Internet, their children are all born at term, and even if they are not born at term, it doesn't matter if they have children's gender. Some babies are girls, but they are born in July or August.

Therefore, whether the child is born early or not has nothing to do with the gender of the child, parents should not be so ignorant and ignorant, and must believe in science. And in the third trimester of pregnancy, pregnant women must maintain appropriate exercise, and also do less dangerous actions, such as it is best to bathe in the company of family members, and do not let pregnant women bathe alone. Because the bathroom is very slippery, if a pregnant woman accidentally falls, it may cause premature birth.

We need to know that the time of birth of the child has nothing to do with the gender of the child, and we must be clear about this and not be too ignorant. There is a relationship between the child's birth time and the child's growth and development, and if the child's constitution is relatively weak, then the child may be born early, such as at 35 or 34 weeks. If the child is not born between 37 and 42 weeks, then it means that the child is a premature baby, and the child is relatively weak and must stay in the incubator.

Expectant mothers cannot infer the sex of the baby based on the comparison between the real "check-in" time of the baby and the expected date of delivery. The sex of the baby is determined at the moment of union of the sperm and egg, and does not change depending on the length of pregnancy. Domestic mothers, after the baby is born, the midwife will hold him (her) in front of you as soon as possible, and the answer will naturally be revealed at that time.

1.Some believe that boys and girls have different levels of hormones, so boys develop faster in their mothers, and boys are born with a shorter pregnancy than girls. The development speed and level of the fetus are affected by a variety of aspects, such as placental function, the physique of the pregnant mother, etc., and male and female hormones are only one of them, which cannot be used as the basis for judging the sex of the fetus.

2.Some people think that boys are active by nature and have a lot of activity in the womb of the expectant mother, so they will be born a little earlier, and girls are quieter, and they don't like to move in their mother's womb and stay longer. Judging from the nature of boys and girls, there is no basis for judging the birth time of the Confession Mountain, and some girls are more crying and noisy than boys after they are born.

The sex of the fetus is destined from the moment the fertilized egg is formed, and it will not change because of the length of pregnancy, so mothers should not take the sex of the child too seriously according to the time of pregnancy, and the early birth and late birth of the fetus are caused by a variety of factors.

The due date is calculated based on the average length of pregnancy in humans, which is 40 weeks on average. Average data generally does not represent the whole picture, just as the average height cannot be used to ** the actual height of each person.

If the pregnant mother remembers the time of the last menstrual period incorrectly, or the menstrual cycle is uncertain, it will cause inaccurate estimation of the time. There are individual differences in the level of fetal development, and some fetal babies have a high level of absorption and digestion, develop quickly and well, and meet the birth requirements early. On the contrary, those who do not develop well will stay in the mother's womb for a long time.

The physical fitness of the expectant mother can also lead to a deviation between the expected date of delivery and the actual time of delivery. Nutrition cannot keep up during pregnancy, and pregnant mothers with pregnancy diseases are more likely to deviate from the due date.

As long as the fetus is born healthy and healthy, it is the greatest happiness, and there is no need to worry about whether it is earlier than the due date or later than the due date. Approaching the due date, all the pregnant mother needs to do is to prepare for the arrival of the baby.

No, there is no scientific argument for this statement, it is determined according to the mother's physical fitness and pregnancy process, and there will be a certain error in the calculation of the expected date of delivery.

No, it's just a mantra that people call it, and there's no experimental data to prove it, and there's no scientific basis to prove it.

Not necessarily, premature birth and dystocia should be determined by the woman's physical condition, usual work and rest habits, daily eating habits and other factors.

There is no scientific basis for this statement, whether premature birth has nothing to do with giving birth to a boy or a girl, and it has something to do with the pregnant woman's body.