Does marriage affect longevity

Human being - no marriage without grandparents

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From a biological point of view, it actually makes no sense for women to live for decades after menopause. But as a grandparent they are important to the community - this in turn affects our life expectancy. This hypothesis is now put one on top: without grandma no long relationships.

Grandma is the best, also in terms of evolutionary biology. It helps to get the little ones through - and mothers can have more babies this way. The longer Grosi lives, the more offspring there can be. This is how genes prevailed that continued to increase people's lifespan. However, this longevity has consequences, writes the US anthropologist Kristen Hawkes in the specialist magazine “PNAS”.

The researcher simulated communities with and without grandparents. In the long-lived communities with grandparents, an imbalance developed over a period of 30,000 to 300,000 years: Because men are fertile longer than women, there was a surplus of fertile men.

Long-term relationships therefore became more meaningful for men than looking for new partners. Thus, the "grandmother effect" indirectly contributes to stable couple relationships, according to Hawkes.

dpa, eggn

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