Effect of smoking on intelligence development of test tube infants
As an important assisted reproductive technology, IVF has helped many infertile couples realize their dreams. However, the success rate of IVF still faces some challenges, one of which is the situation of mothers smoking during pregnancy. Smoking may have adverse effects on embryonic and infant development, especially in intellectual development. This article will elaborate on the possible effects of smoking by IVF mothers on infant intellectual development from several aspects.
1. Smoking and infant birth weight
Research shows that there is a close relationship between mothers' smoking during pregnancy and their baby's birth weight. Smoking can lead to fetal hypoxia, affect maternal absorption and supply of nutrients, thus affecting the normal development of the fetus. Low birth weight infants are usually accompanied by delayed intellectual development, which may have a long-term impact on infants' learning and development.
One study, published in the medical journal, investigated test tube babies in Ontario, Canada. The results showed that the average weight of infants born to smoking mothers was low, accompanied by a delay in intellectual development. Therefore, smoking is likely to have a negative impact on the intellectual development of IVF.
2. Smoking and infant nervous system development
Smoking also has a negative impact on the development of the infant's nervous system. Nicotine and other harmful substances enter the placenta and affect the brain development of the fetus. The study found that the thickness of the cerebral cortex of infants born to smoking mothers is thin, which may be related to the loss of neurons and abnormal connections.
A study by the University of California found that children whose mothers smoked in vitro babies scored lower in intelligence tests and their academic performance was also poor. This result shows that smoking may have a lasting impact on the normal development of the infant's nervous system, thereby adversely affecting its intellectual development.
3. Smoking and infant cognitive ability
Smoking by IVF mothers also has an impact on infants' cognitive ability. Research shows that there are significant differences in the development of language and memory in infants born to mothers who smoke.
A study conducted by Rhode Island Children's Hospital found that at 18 months, the ability of language and memory of infants whose mothers smoked in vitro babies was lower than that of infants who were not exposed to tobacco smoke. This indicates that smoking may have a negative impact on infants' cognitive development.
4. The influence of smoking on the success rate of IVF
In addition, smoking may also affect the success rate of IVF. Estrogen is an important regulator and plays an important role in IVF treatment. However, smoking may lead to a decline in estrogen levels, affecting embryo implantation and pregnancy development.
A study by Harvard Medical School found that the success rate of mothers who smoked in vitro babies was 24% lower than that of non-smokers. This shows that smoking not only affects the intellectual development of infants, but also may affect the success rate of IVF.
Summary
To sum up, smoking by IVF mothers may have a negative impact on infant intellectual development. Smoking may lead to low birth weight, abnormal development of nervous system, cognitive impairment, and affect the success rate of IVF. Therefore, mothers of IVF babies are encouraged to avoid smoking during pregnancy in order to promote the healthy development of their babies.
