1, the birth step effect In the hospital obstetrics and gynecology department, some parents who want a second child to the doctor: “I heard that the first child is smarter than the second child, is this true?” In fact, this possibility is indeed great. But there is no need for parents to be psychologically burdened, because the opposite is also true in many cases. Foreign studies on the impact of birth order on children in families have found a “birth step effect”: older siblings often do better than younger ones. Recently, a group of Norwegian researchers published a report showing that in the same family, the first born children than the next average IQ to 3 percentage points higher. Researchers believe that this may be because they have to lead and watch their younger siblings in life. However, this is only the result of the IQ survey, and it is a completely unknown variable who will end up in a better college, who will be more successful, who can contribute more to humanity, etc. Why are there huge differences in the personalities and intelligence of two children born in the same womb? 2, the first child is smarter than the second child About the first child is smarter than the second child explanation 1, the birth of the second child, the couple’s reproductive function has had a considerable regression. If exuberant sperm and eggs can give birth to smart children, it is easy to understand why the first child is smarter than the second. 2. Right after birth, the first child has the opportunity to receive concentrated parental education. The most common recent early childhood education starts around the age of three. This period is the most developed period of the human brain, except for the fetal period. Therefore, the first child has the opportunity to make up for it, even if he or she is born less intelligent. Surveys from the Philippines also show that children born later are at a height and weight disadvantage compared to their older siblings who were born first, and they receive less attention. However, this allows them to develop a free and cheerful personality. The younger siblings are thus more challenging and striving, as they try to reverse the “big baby” situation. However, the “birth step” theory is not a panacea, as family status, number of children, etc., can affect the accuracy of this theory. Therefore, parents just need to take care of each of their children and not worry too much about the results of this study. With China’s announcement that it will start implementing the “two children alone” policy, many single couples are struggling with whether to have another baby. What are the effects of having another baby on the mother’s health? The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. Although many aspects of this mysterious disease are still unknown to modern medical experts, one thing is certain: if the affected woman’s monthly ovulation cycle is discontinued, the “progress” of the disease will be strongly curbed as a result! Therefore, pregnancy and childbirth is the most effective and least side effect way to “cure” this very difficult disease. It is often recommended by some gynecologists to treat this disease. (1) Delaying menopause There is a limit to the number of eggs a woman can produce in her lifetime. During pregnancy and breastfeeding, the ovaries in the pregnant woman’s body suspend ovulation due to hormonal effects and do not resume until the 4th to 6th month of breastfeeding. Since the ovaries delay the discharge of one or two dozen eggs, women who have been pregnant and breastfeeding for a longer period of time may have their menopause delayed. (2) Improving immunity A complete pregnancy and childbirth experience enhances the anti-tumor capacity of the female reproductive system and reduces the incidence of breast, ovarian and endometrial cancers. Pregnancy and childbirth can exercise, integrate and improve various body functions, thus enhancing the body’s ability to detoxify, resist infection, cancer and cardiovascular disease. 4.Reduce the chance of ovarian cancer Pregnancy makes women’s body produce an antibody to resist ovarian cancer, which can effectively stop the occurrence of ovarian cancer. The more the number of pregnancies and the earlier the first pregnancy, the more significant the effect. Some surveys have also found that breastfeeding for more than three months likewise reduces the chance of certain cancers. The relationship between pregnancy and reduced incidence of breast cancer is well documented. Based on the fact that women’s ovaries automatically stop ovulating during pregnancy, experts theorize that women who ovulate less are less likely to develop breast or ovarian cancer. Mothers who have never conceived or breastfed are more likely to develop breast cancer. Some data show that women who have children after the age of 35 are 58% less likely to develop ovarian cancer than women of the same age who have never had children. How old is the “golden age” for women to give birth? If we look at the pure biology, around 25 years old is the best age for women to give birth, when the cervical canal is elastic and easy to dilate, and the uterine muscles have enough strength to contract, making it easy to give birth safely. If we take into account social and psychological factors, the ideal age for women to give birth is 25-30 years old, when women are very mature psychologically and physiologically and are most suitable for conceiving a baby. Once you enter the age of 35, you are an advanced maternal age, not only the chance of conception becomes smaller, the rate of spontaneous abortion also increases significantly. In the reproductive medicine center of a hospital in Beijing, nearly 1,000 infertility women from all over the world are received every day, and about 10% of the 270,000 outpatient visits each year are due to infertility caused by overage. Many people are too busy to have children when they were young, and when they get older, they want to have children but can’t conceive. Since natural conception alone does not wait for time, and the older they are, the more risks they face, the decision was made to do IVF for them by in vitro fertilization.