There is a reason why pregnancy is called an altered state. This is a truly remarkable time. And we are constantly learning something new about him. Some of the discoveries and hypotheses about pregnancy are very surprising.
The concentration of estrogen in the blood of a pregnant woman is almost 1000 times higher than before the pregnancy!
And these include oestrogens are responsible for the changes that take place in the body - both physical (enlargement of the uterus, increase in the amount of blood and blood vessels, development of milk ducts) and mental (mood swings, nest-building instinct). No wonder that with such a huge increase in estrogen levels, a woman inpregnantis a "walking bomb" that must explode from time to time.
A pregnant woman's heart will be faster
Scientists suppose that this is because the blood volume increases by about 30 percent. - in a woman's blood vessels 1.5 liters of blood circulate more than before pregnancy. Since there is much more blood, the heart has to work harder to circulate it properly. This results in an increased heart rate.
A pregnant woman is warmer
Thanks to the chorionic gonadotropin (hCG) and the acceleration of the metabolic rate (by 25%), the body temperature increases. Unfortunately, pregnancy is also associated with more intense sweat secretion.
The future mother's diet causes cryptorchidism
This is one of the hypotheses.Cryptorchidismis a condition in which the testes of the fetus do not descend into the scrotum, but remain in the abdominal cavity. The descent of the testicles should occur around the 37th week of pregnancy, but in the last hundred years, cases where this does not happen are three times more common. According to researchers, the cause may be high levels of estrogen in the uterus, caused by the mother's diet - rich in fats and proteins and low in fiber.
The number of boys and girls born changes with the seasons
For example, in the United States, boys' births peak in June.
Child gender test
During the first weeks of pregnancy, the male and female embryos look the same
Each has two coils: Wolff wire and Müller wire. Only in the 9th week, in girls, the Müller's duct will become the reproductive system, and Wolff's duct will disappear. In boys, on the other hand, it will develop from Wolff's cordthe male reproductive system, and the Müllerian duct will disappear.
Fathers with stressful professions have more daughters
This is probably because high levels of stress hormones upset the balance of your sex hormones.
The appetite for sex is changing
In the first trimester of pregnancy, many women feel reluctant to have sexual intercourse. It is caused by malaise, irritability and fatigue. Some women, on the other hand, experience increased sexual needs just then. After the 4th month of pregnancy, almost all pregnant women wantsex . Many experience more powerful orgasms than before. It is related to better vaginal and uterine perfusion.
Most expectant mothers notice that their feet have grown.
Pregnancy hormones loosen the ligaments, as a result of which the feet enlarge, especially since they are burdened by a dozen or so extra kilos. After having a baby, more than half of women wear shoes that are one size larger than before.
Strange, often nightmarish dreams appear in the last weeks of pregnancy
For example, you dream that instead of a child a small animal or a creature not resembling a human is born, that the child has a birth defect or dies. The cause of these dreams is probably hormonal changes. However, you do not have to worry about them or be afraid. These dreams have a positive function - they allow you to articulate your fears and get used to them. In this way, the psyche of a pregnant woman helps her understand and rationalize the fears related to childbirth.
The differences in the structure of the left and right hemispheres of the brain do not decide whether the child will be right- or left-handed
It's just the opposite! It turned out that already around 10 weeks of age, the fetus makes single arm movements and already then prefers the right or left hand - and it stays like that for the rest of its life. Meanwhile, the differentiation of the brain's hemispheres comes later! So it is the choice of the left or right hand that makes the difference between the right and the left half of the brain.
Corrupted appetite
This is a rare condition that affects some pregnant women. Cravings are normal during pregnancy, but there are women who have an appetite for… clay, chalk, toothpaste, and even burned out matches! Specialists do not know where it comes from, perhaps this is how the woman wants to subconsciously replenish the deficiency of certain nutrients. Distorted appetite can interfere with the absorption of important minerals, so if it occurs, please report it to your doctor.
Restless Legs Syndrome
It is an excruciating feeling of "mobility" and anxiety lurking inside the feet or legs, usually felt at night and keeping you awake. It affects about 15 percent. womenPregnant. The causes of this ailment are unknown, as are the effective methods of alleviating it (drugs can be used only after pregnancy).
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