Keep away from second-hand smoke and prevent deafness

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Recently, a study based on mouse experiment was published in the Journal of physiology, a famous international medical journal. It is believed that long-term exposure of pregnant women and newborns to nicotine may cause problems in the newborn’s auditory system.

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As early as 20 years ago, medicine has confirmed that pregnant women’s exposure to nicotine will have an impact on the brain of the fetus, while newborn’s exposure to nicotine will affect some nerve development of the brain.

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According to data from the U.S. Department of health, smoking or using electronic cigarettes containing nicotine, injecting nicotine drugs, etc. in pregnant women will increase the risk of premature birth. The average birth weight of newborns is generally low, and the death rate of newborns is also high. Medical researchers have speculated that nicotine has an effect on hearing, but they have been suffering from no evidence. This study is the first to report the effect of nicotine on the brain.

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According to the research, nicotine may have a negative impact on the auditory brainstem, and some children from smoking families may lag behind in sound analysis ability, thus affecting language learning and understanding.

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In the experiment of mice, the researchers fed the drinking water containing nicotine to mice to compare the nicotine content. The nicotine content was reduced strictly according to the proportion of human daily contact. Three weeks after the birth of the offspring of mice, their physical development was basically equivalent to the early level of human primary school. Through a series of tests, the ability of these mice’s auditory organs to transmit signals was found The efficiency was significantly lower than that of the control group.

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However, the researchers admit that at present, it is impossible to determine whether there is a problem in the cochlea or in the nerve center or brain, and how the auditory system is attacked by nicotine. More research and experiments are needed. However, the researchers suspect that there may not be a problem in the cochlear organs, and there may be a problem in the auditory brainstem to the location of neurons.

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Since the 1990s, some members of the U.S. Congress have called for legislation to protect pregnant women and newborns from contacting nicotine. However, due to the lack of social attention, more and more statistical data show that the harm of nicotine to human body is not as simple as we think. From the perspective of Health Science Popularization in recent years, non-smokers are exposed to “second-hand” substances Smoking “can even achieve the same effect as smokers, who are unable to control their exposure to pregnant women or newborns after smoking.

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Hong Kong, Singapore and other places have called on smokers not to approach pregnant women or hug children within 30 minutes after smoking. In mainland China, the protection of pregnant women to their foetuses is almost armed to their teeth. It covers everything from pregnant women’s diet to radiation protective clothing. However, nicotine produced by tobacco is hard to be binding. Although the Chinese government requires that smoking be banned in public places, it is difficult for the public to implement it.

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According to research and statistics in Japan, unhealthy food, radiation and collision are the three accidents that pregnant women are most worried about. Most pregnant women compromise on tobacco and try to avoid them in principle, and can only accept those unavoidable accidents. This shows that, whether in the east or in the west, people’s understanding of nicotine in tobacco is still limited.

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This finding may bring new information to the anti smoking people, but it is more to provide a basis for the study of children’s hearing impairment. Although statistically speaking, long-term exposure to nicotine does have an impact on hearing, from a scientific point of view, it is necessary to further confirm how this impact occurs.

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