Genetic factors: Older childbearing may be related to the increased risk of some genetic diseases. For example, older mothers may be more likely to give birth to children with chromosomal abnormalities like Down syndrome. These diseases may have a negative impact on children's intellectual development.
Environmental factors: Older women may face more health problems after the birth of their children, and their physical condition may be worse than that of younger women. This may affect children's care and family environment, thus affecting intellectual development.
Family factors: Old-age childbearing may be related to family stability and economic situation. If the elderly women face more challenges after the birth of their children, such as economic pressure or family relationship problems, it may have a negative impact on the development of their children.
Although some studies have shown that old-age childbearing is related to some negative effects, it should be noted that these effects are the general trend and do not apply to every individual. Many elderly mothers can still provide good care and support to promote the normal development of their children.
Most importantly, a child's intelligence and development depend not only on the mother's age, but also on the comprehensive influence of heredity, environment, education and other factors. No matter how old the mother is, it is very important to provide good early education, healthy lifestyle and supportive family environment for children's intellectual development.