The old saying acid spicy female infants have any scientific truth?

The old saying acid spicy female infants have any scientific truth?
Acid is really spicy female infants?
Acid spicy female infants is a long history of that. Juehou some fear that the family if his wife and pregnant daughter-in-law after Hei acid, it would be very pleased if Hei spicy, Lingwenkandai pregnant women, and even force its people to do, I hope the next pregnancy-hi acid infants.
In fact, decreased appetite in pregnant women, sensitive to smell, or eosinophils嗜spicy or even to eat normally do not eat food Hei, are normal physiological reflect pregnancy because pregnant after endocrine activity change, placental villous promote secretion of gonadal hormone. Such hormones inhibit gastric acid secretion, to reduce gastric acid secretion, which in turn reduces the activity of digestive enzymes, affecting appetite and digestive function, has nothing to do with the sex of the foetus.
In addition, pregnant women with different geographical tastes different eating habits of the family. For example, the North South sweet salty, spicy Sichuan acid West, but throughout the newborn sex ratio no significant difference. Fetal sex is determined by the sex chromosome, the only changes in the tastes of pregnant women to determine the fetal gender is without any scientific basis.
Many people think that during pregnancy, likes to eat sour foretells a son, would like to be on the Wye Chila the girls. In fact, there is no justification for it. Experts confirmed that pregnant women prefer acidic food is consistent with the physical and nutritional needs. Pregnant women, the maternal and fetal placental secrete a substance called human chorionic gonadotropin, the role of inhibiting gastric acid secretion, gastric acid reduction, and reduced the activity of digestion, thus affecting the gastrointestinal absorption functions, allowing pregnant women produce nausea, vomiting, decreased appetite, such as pregnancy reaction. The taste can stimulate the secretion of gastric stomach, and can increase the activity of digestive enzymes to promote gastric peristalsis, increased appetite, help digestion and absorption of food, so, the majority of pregnant women love to eat fresh acid. Under normal circumstances, human chorionic gonadotropin in about one month after the start of pregnancy increased to two months when peak, which is why pregnant women in the early stages of pregnancy preference for the truth of fresh acid. Some women prefer Chila, it is irritating to the individual food preferences.
Whether male or female hygiene, by its own human chromosome decision. The two male sex chromosome, one is X, Y is the other one, acid-XY. Of the two female X chromosomes are formed XX, therefore, the mother's egg cell with all of the X chromosome, and the father's sperm carried by the sex chromosomes, there are two kinds of carrying the X chromosome and the other carrying Y chromosomes, known as X and Y-chromosome sperm, known as the X-and Y-sperm sperm. Fertilization, when sperm carrying the X chromosome (X-type) and the combination of egg, the baby's sex chromosome for XX, and carries 10% of girls; if the Y chromosome (Y-) combined with egg, the baby's sex chromosome For XY bred into boys. So what is decided baby boys or girls, the key is not determined by the taste is sour bias or spicy, but decided to combine egg and the sperm carrying the X chromosome, or Y chromosome. This also demonstrates that boys woman is random, whether it is the husband or wife, are currently unable to determine the next generation "gender" fate, only "fatalistic."
Why after so pregnant women eat acid things? This is because women become pregnant due to the lack of acid. In about 2 / 3 of the pregnant women in the first six months, especially the first three months there will be insufficient acid and, therefore, stomach and digestive capacity of the poor, food gastric emptying time than normal extension 1-2 hours, pregnant women to compensate for the deficiencies in acid, is naturally eat a sour food. This is like sweating too many people who want to drink plenty of water, is a compensatory natural reaction of the pregnant women themselves and the health of the fetus, this is useful. However, pregnant women and the health of the fetus will be negative, such as vinegar, sour wine, pickled sauerkraut and more acidic, such as not eating hot spicy food.
Pregnant women after eating some of the best date, pears, Yangmei and mature oranges, kiwi fruit, such as tomatoes, fruits or vegetables contain sufficient moisture, acid juice and crude fiber, pregnant women can not only increase the appetite and help digestion, and can be avoid constipation of the uterus and the fetus pressure. At the same time, the fruit also contains a lot of iron to prevent iron-deficiency anemia in pregnant women. In addition, the strong metabolism during pregnancy, the need to maintain the vitamin C group system