With the improvement of the living standard of the society, people’s health consciousness is also changing constantly. In the past, people were satisfied as long as they did not get sick and had no pain and disability, but now it is different, they not only require to be free from diseases, but also to be in a good state psychologically and in terms of organism function. No deafness, no blindness, a healthy body and a good state of mind have become commonly pursued goals. In real life, we can often see a lot of people worry about hearing loss, regret for premature hearing decline, many people look forward to a way to delay hearing aging, then it is very necessary to understand some of the correct hearing health care knowledge. When should good hearing care start? The earliest development of the human auditory organ occurs in the third week of pregnancy. By the third trimester, the tympanic membrane has formed; by the fifth trimester, the development of the middle ear, auditory bones and tympanic chambers is initially completed. When the fetus is six months old, it has hearing and can hear the sound of the mother’s blood vessels pulsating and feel the outside world through the mother’s abdominal wall. Therefore, in order to cultivate the intelligence level of children, people advocate early education, a newborn baby, if his hearing is normal, through the education of parents and the stimulation of various external sounds, will soon learn to speak and sing, and can go to school to gain knowledge, on the contrary, if he loses his hearing, the consequences are unimaginable. It can be seen that hearing and intelligence are closely related. Good hearing can make a person responsive; when hearing is poor, the response is slow and appears demented. As the saying goes, “A deaf child is three times dumber” is the truth. From the beginning of pregnancy, in order to ensure that the baby has good hearing, at least the following aspects of the series to start. 1, nutrition After pregnancy, due to the rapid development and growth of the fetus, the mother’s body brought a series of changes, such as endocrine exuberance, increased metabolism, etc.. The mother must have adequate nutrition to ensure the normal development of the fetus. This includes, of course, the development of the hearing organs. Ensuring comprehensive and adequate nutrition for the mother is not necessarily about taking any special supplements, but about ensuring the quality and quantity of various substances needed for the growth and development of the fetus. There should be no partial diet. Why is nutrition related to hearing? If the nutrition during pregnancy is poor, it can cause a decrease in fetal brain cell division or even a decrease in the number of brain cells. If the development of brain cells is affected, the auditory response will be insensitive and affect the hearing. In addition, if the mother suffers from vitamin B deficiency, it can cause slow progression of neurological deafness. If excessive vomiting during pregnancy without timely supplementation or repeated diarrhea due to gastrointestinal disorders, it can easily cause malnutrition, which can endanger the cochlea, balloon spot, and vestibular nerve of the fetus. Therefore, the fetal period is a critical stage for the development of hearing organs, which requires high nutritional requirements, and once lack of nutrition, it will cause adverse consequences. 2, emotion The fetus grows and lives in the mother’s womb, before it is born, in addition to the mother’s health and nutrition, but also connected with the mother’s psychological state, emotional changes. Emotion is a complex and variable psychological phenomenon, and its great effect on the organism cannot be underestimated. The mother’s emotional stability, psychological health, positive optimism, the fetus from which the good enjoyment, normal development, of course, including the development of hearing. 3, prohibit tobacco and alcohol When tobacco is burned, it produces carbon monoxide, which makes the fetus lack of oxygen, and nicotine can make the placenta’s blood vessels constrict, reducing the blood supply to the fetus. So smoking can have adverse consequences on the development of the fetus. Drinking large amounts of alcohol during pregnancy can delay the development of the fetus in the womb and cause malformations. This is because, when a large amount of alcohol enters the body, it can damage the reproductive cells and make the sperm and eggs underdeveloped. Conception after alcohol can cause fetal developmental delay and mental retardation, abnormal brain development, prone to stupid and imbecile children. Therefore, the prohibition of smoking and alcohol is the only way to give the fetus a good start in hearing.