Beware of secondhand smoke and fetuses
Ms. Li, a citizen of Guangzhou, recently turned to the newspaper to find out if there was any “no smoking in the office†because she was poisoned by the smokers in the office for a long time. This month, Ms. Li had a miscarriage of BB for two months.
"Second-hand smoke can lead to BB abortion. Is this too exaggerated?†Ms. Li’s smoker colleague said dismissively. Ms. Lee had a miscarriage when she was pregnant for two months. She and her husband went to the hospital and did not find the cause of the miscarriage after a number of tests. At this time, the smokers around her became highly suspect. Several male colleagues in the office are old smokers. Ms. Li and other female colleagues often protest, but the male colleagues still find all kinds of reasons to smoke, not only in the office, but also in the bathroom, hallway, smoke smell People have nowhere to hide.
Passive smoking can lead to miscarriage premature birth
How much influence does passive smoking have on the fetus?
According to Jiang Yan, deputy director of the Tobacco Control Office of the Chinese Center for Disease Control and Prevention, passive smoking causes the fetus to lose weight, causing slow growth of the fetus or congenital malformations. Passive smoking also increases fetal prenatal mortality. Scientists' analysis of 500 pregnant women found that: When a pregnant woman's husband smokes more than 10 cigarettes per day, the prenatal mortality rate of the fetus increases significantly by 60%. The more smoking, the higher the mortality rate.
According to Jiang Yan, passive smoking can also lead to miscarriage or premature delivery of pregnant women. The more passive smoking, the greater the risk of premature birth or miscarriage. This is because, in the early stages of pregnancy, due to the effects of nicotine and metabolites, the secretion of progesterone in pregnant women is reduced, thereby affecting the decidual reaction of the endometrium, impeding implantation of pregnant eggs, causing termination of pregnancy, or spontaneous Sexual abortion.
Decreased zinc content in passive fetus
In addition, passive smoking can also cause fetal intrauterine asphyxia or death: This is due to nicotine poisoning, so that placental oxygen content is reduced, in order to meet the needs of the fetus, the placenta will produce compensatory hypertrophy, and the placenta is too large often have decidua The pathological changes of necrosis of the basement and nourishment of the cells, resulting in intrauterine asphyxia or death, may also have the risk of umbilical artery malformation.
Pregnant women under the influence of the smoking environment will greatly reduce the zinc content in the fetal blood and thus affect the development of the fetal brain.
Studies in the United States have found that passive or active smoking in pregnant women can cause prolactin levels to decline and milk secretion to decrease. This has been demonstrated in animal experiments. Smoking increases dopamine turnover and dopamine inhibits prolactin.
Secondhand smoke causes anorexia or sudden death in infants
Passive smoking not only affects the fetus, but also has a great impact on children's health. Passive smoking can increase Sudden Infant Death Syndrome, acute respiratory disease, slowing the development of lung function, asthma and worsening asthma, and chronic middle ear disease.
In addition, smoke can also lead to anorexia. Babies are particularly sensitive to the smoke of cigarettes because their livers are not yet detoxifying. If inhalation of nicotine occurs at the time of eating or shortly after eating, babies will subconsciously associate nausea with food and cause anorexia.
Children who grew up in smoking families to 7 years old had significantly lower reading ability than children in non-smoking families. Children who grew up in smoking families to 11 years old had a 4 month delay in their reading ability and a 5 month delay in their arithmetic ability.
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