Die Anzahl der Kinder, die Sie haben, kann sich laut Studie auf Ihre Lebensdauer auswirken. „Wenn viel Energie in die Fortpflanzung investiert wird, wird sie den Wartungs- und Reparaturmechanismen des Körpers entzogen, was die Lebensdauer verkürzen könnte.“
https://www.sciencealert.com/the-number-of-kids-you-have-may-affect-your-lifespan-study-finds
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Giving birth to more than the average number of children or having no children at all has been linked to a shorter lifespan and faster biological aging in a recent [study](https://doi.org/10.1038/s41467-025-67798-y) led by a team from the University of Helsinki in Finland.
The researchers emphasize that the findings shouldn’t be taken as health advice for individuals. Rather, it’s a population-level association that fits with recent theories around evolutionary biology.
The disposable soma (body) theory, for example, proposes that our lives are a balance between reproduction and survival – if more resources are used for the former, there’s less left for the latter.
„From an evolutionary biology perspective, organisms have limited resources such as time and energy,“ says biologist Mikaela Hukkanen, from the University of Helsinki.
„When a large amount of energy is invested in reproduction, it is taken away from bodily maintenance and repair mechanisms, which could reduce lifespan.“
While studies have previously found that having more children is associated with lower wealth later in life, most previous research has involved just one or two variables in isolation – such as the age at which a woman had her first child, or how many children she had in total.
The researchers behind this new study constructed a more comprehensive picture of childbearing history and morality, analyzing data on 14,836 women who were all twins (to help minimize the influence of genetic factors). A subset of 1,054 participants was also assessed for markers of biological aging.
I sought to circumvent this by having a vasectomy when our second child was born..
Could it be that people who don’t know about contraception don’t have good access to healthcare?
Explain our grandparents that had 5-6 kids each who are living to 105….
This is established lore in the Lord of the Rings when Feanor was born his soul was so powerful and ambitious that it drained the spirit of his Mother and she simply went to sleep and died, even in the undying lands of Valinor
Wasn’t there also research showing that have children increases lifespan for woman? I swear I saw that humans actually probably live so long because our children take so long to mature, that woman need to live longer as well as the “grandmother theory” that our species depended on multigenerational child-rearing.
I guess I’m going to be immortal.