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Keep away from secondhand smoke and prevent deafness

A recent study based on the mouse experiment was published in the internationally renowned medical journal The Journal of Physiology. It is believed that long-term exposure of pregnant women and newborns to nicotine may cause problems in the neonatal auditory system.

  

As early as 20, medicine has confirmed that exposure of pregnant women to nicotine affects the brain of the fetus, and neonatal exposure to nicotine affects some of the brain’s nerve development.

According to a US health department, smoking or using nicotine-containing e-cigarettes or nicotine-containing drugs increases the risk of preterm birth in newborns. The average birth weight is generally low and the neonatal sudden death rate is high. Some medical researchers have speculated that nicotine has an effect on hearing, but it has been suffering from no evidence. This study is the first report of the effects of nicotine on the brain.

Studies have shown that nicotine may have a negative impact on the auditory brainstem, and that children of some smokers may lag behind in the ability to analyze sound, thereby affecting the language of learning and understanding of the language.

From the mouse experiment, the researchers compared the drinking water of nicotine in mice, and the nicotine content was strictly reduced according to the proportion of daily human contact. The three-week generation of the offspring of the mouse was basically equivalent to human primary school. At an early stage, through a series of tests, it was found that the ability of the hearing organs of these mice to transmit signals was significantly lower than that of the normal control group.

But the researchers admit that it is still impossible to judge whether there is a problem in the cochlea or a problem in the nerve center and brain, and how the auditory system is attacked by nicotine. This requires more research and experimentation, but the researchers speculated that There may be no problems with the cochlear organs, and the auditory brainstem to the neuron position is likely to have problems.

  

Since the 90 era in the last century, some members of the US Congress have called for legislative protection for avoiding exposure to nicotine during pregnancy and newborns, but they have been stranded because they have not received social attention. More and more statistics show that nicotine is on the human body. The harm is not as simple as we think. From the perspective of health science in recent years, non-smokers can reach the same effect as smokers by exposure to “second-hand smoke”, and these people cannot reach pregnant women or newborns after smoking. controlling.

Hong Kong, Singapore and other places have urged smokers not to approach pregnant women or hug children within 30 minutes after smoking. In mainland China, pregnant women’s protection of the fetus is almost armed to the teeth, from pregnant women’s diet to radiation protection, but it is difficult to bind nicotine in tobacco, although the Chinese government requires smoking in public places, but it is difficult Let the public do it.

There have been surveys and statistics in Japan that bad food, radiation and collision are the three most worrying cases for pregnant women. Most pregnant women adopt a compromise attitude toward tobacco. In principle, they should avoid it as much as possible, and they can only avoid it if they can’t avoid it. This shows that people in the East and the West have a limited understanding of nicotine in tobacco.

This finding may bring new information to the smokers, but more is to provide a basis for the study of children’s hearing impairment, although statistically, long-term exposure to nicotine does have an impact on hearing, but from a scientific perspective It is also necessary to further confirm how this effect occurs.

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