Is it true that the body has a lot to do with the way it looks? Now in the network a search for the method of birth, out of the words are countless. It seems that the scientific community does not have a very definite answer at the moment. But the undeniable fact is that the X chromosome determines the birth of a girl, and the Y chromosome determines the birth of a boy. Internationally, there are more and more room guidance for the birth of a boy and a girl, their basic view is: the X chromosome determines the birth of a girl, the Y chromosome determines the birth of a boy, women are alkaline body men are acidic body more boys, and the other way around, more girls.

1, the male factor: the man's sperm have X and Y two kinds, and each has obvious personality traits. X sperm determine the birth of a girl, it is a big head of the body is stupid, slow action, but endurance, acid resistance, long life; Y sperm determine the birth of a boy, characterized by a small head and tail long, swim fast, the sperm's survival period, but the life expectancy of the short, the ability to adapt to the environment is poor, especially in the acidic environment easy to die. In the march to the egg, Y sperm often take the lead, so more male babies than female babies. However, due to a variety of factors (the so-called ecological balance), the sperm time male to female sex ratio has always remained between 103-106:10O.

2, female factors: with the cycle of ovulation cycle, the vagina and the cervix of the acidity and alkalinity of the uterine cervix also occurred with regular changes. The safe period is acidic, the cervix of the milky substance viscous; ovulation is alkaline, the cervix of the milky substance thin clear, extremely conducive to the passage of sperm. However, some women are still acidic at ovulation and the cervical milky substance does not improve. At this point of intercourse, X sperm if you can rely on their own unique stamina and acid resistance advantage, most can barely pass into the fallopian tube, and Y sperm through the acidic environment has been greatly injured, through the viscous milky, most of them died, the rest have been dying, so, with the acidic body of women, so the possibility of a girl is greater.

What are the characteristics of the birth of a boy or girl early to know

1, from the pregnant woman's belly to determine the symptoms. The pregnant woman's belly type pointed convex, will be pregnant with a boy; belly type round, pregnant with a girl.

2. Observe the changes in the appearance and skin of the pregnant woman. If the pregnant woman's appearance becomes beautiful and her skin becomes smooth, she may be pregnant with a girl; on the contrary, her appearance becomes ugly, her skin becomes rough, and even her face is full of pimples and other symptoms, she may be pregnant with a boy.

3, pregnant women's tastes change.? The most widely spread rumor about the birth of a boy is that it is not a good idea to have a boy. is one of the most widely circulated rumors about the birth of a boy or a girl, if a pregnant woman likes to eat sour will have a boy, if she likes to eat spicy will have a girl. And pregnant women who are pregnant with boys have a big appetite and eat their favorite foods.

4, the speed of the fetal heart strong and weak. It is generally believed that if the fetal heart is stronger and slower, it is more likely that the fetus is a boy; on the contrary, it is pregnant with a girl. This is a more common way to guess the symptoms of a boy or girl).

5, the weight gain during pregnancy is mainly concentrated in the abdomen is male; concentrated in the buttocks and thighs is female.

6, the fetal movement feeling fists and kicks and the whole body turning for male, only the whole body turning female.

7, ultrasound shows that the baby face outward male, face MM female.

8, stretch marks above the navel to the left, straight, thin, straight between the breasts, and the whole stretch mark is light male, and vice versa female.

9, after pregnancy, the prospective MM libido becomes stronger is male, libido did not change or become weak is female.

10, late pregnancy from the back, can not see the pregnancy, the movement is very light, flexible action male, the body is heavy, slow action female.

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