Recent research shows that the number of children born has a profound impact on a person's longevity. According to a study led by the University of Michigan in the United States, there is a close relationship between the number of children born and the longevity of life. By analysing the genetic and health information of more than 276,000 people, the research team found that reproduction and longevity were strongly negatively correlated at the genetic level.
This study provides strong support for the hypothesis of evolutionary biologist Williams. The Williams hypothesis suggests that if certain genetic mutations are able to promote early reproduction or produce more offspring, then they may be favored by natural selection. The findings suggest that mutations in genes that promote reproduction tend to shorten lifespan, and that individuals with mutations that cause relatively low fertility are less likely to live to age 76 than those who carry mutations that cause relatively low fertility.
However, researchers also point out that reproduction and longevity are influenced by a combination of genes and environment. Environmental factors, such as the effects of contraception and abortion on fertility and the impact of medical advances on longevity, play a more important role in research than genetic factors.
Interestingly, when controlling for the number and timing of reproduction of genes, studies have found that having only two children is beneficial for having the longest lifespan. Having too few or too many children can shorten your lifespan.
The findings of this study have important implications for the need to carefully weigh the balance between quality of life and longevity when considering family planning. Having two children not only fulfills the responsibility of reproducing offspring, but also helps maintain a long lifespan.
It is important to note that the results of the study do not imply that the number of children born determines a person's lifespan, but rather reveal the role of genetic mutations in this process. Therefore, in future research, we also need to explore the influence of genetic and environmental factors on human lifespan in order to more accurately assess the relationship between human reproductive choices and health status.
Through this research, we gain a deeper understanding of the relationship between human lifespan and fertility, providing a basis for us to make informed choices on an individual and societal level. In the future, we are expected to make more science-based decisions for human health, happiness and prosperity through further research. Autumn and Winter Check-in Challenge