According to the May 1986 WHO and China's Ministry of health information in China more than 300 million children, due to genetic factors of mentally retarded children for 3% of the total, accounting for about 1% of the total population, up to more than 10 million! Even so. According to statistics, 8.5% of newborns with birth defects. Every year more than 10 million babies born in China, there will be more than 850 thousand of infants with birth defects. But according to statistics, around the country are the most severe dementia 4489, headache, no cure congenital idiot, there are nearly 2 million of the country...... The fetuses who die from the mother are not listed here.
       Confucius said that the destiny cannot be violated. By his own feelings, back against heaven, in violation of the law of life science, to be punished.
       We can also say that eugenics is not good, that is, to worry about health.
       Eugenics is to improve the quality of newborn scientific research. It is an important task in medicine to apply scientific methods to improve the physical quality and intelligence level of the newborn.
       Each couple hopes to have a healthy, smart, lively, beautiful baby, which first need to have excellent genetic conditions. In addition, the couple sperm egg binding time and the health of both sides will affect the future development of the offspring and postnatal development. Therefore, the couple must grasp the eugenic law, one of the key is to choose to get pregnant in the best conditions, such as the physical condition, mental status, nutrition, reproductive cell safety conditions and seasonal and geographical environment, it is the best condition to conceive.
       Close to the decline of the egg and no viable sperm binding is not likely to breed a healthy fetus, according to sperm and egg survival time reckoning, 1 ~ 2 days before and after ovulation for easy pregnancy, the rest of the time for the safe period. The couple in order to achieve the purpose of pregnancy, in the safe period should be reduced to sex, "the idea that Japan, one day". Therefore, when the woman's fertile period, through the detection of female urine test LH hormone peak may know in advance exactly "ovulation" couples should effectively grasp the best time to pregnancy, ovulation in the room, let both sperm and egg in the most fresh, most dynamic, can be reached the purpose of pregnancy and eugenics.