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SplitPerspective t1_iy72rab wrote

Reply to comment by guynamedjames in How the Great Depression shaped people’s DNA. Researchers have found that the cells of people who were conceived during the Great Depression, which lasted from 1929 to 1939 and, at its height, saw about 25% of the US workforce unemployed, show signs of accelerated ageing. by MistWeaver80

If perfect people mate with perfect people, inevitably mutations will arise that lengthen lifespan, and then continue with that perfect on perfect and you’ll increase human longevity.

In the past those with short lifespans were less likely to mate, so in all likelihood only those with longer lifespans mated.

Now, there’s no need / external pressure to live longer.

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Fenix42 t1_iy7i2mj wrote

>In the past those with short lifespans were less likely to mate, so in all likelihood only those with longer lifespans mated.

Humans can have kids at like 12-13. Living to 50+ for men might mean more kids if you can keep finding mates. You will be competing with younger healthier males for those mates. You also have to factor in that a LOT more men died from violence in the past. Hunting, farming, and war tend to reduce the male population a ton.

Women tended tomdie in child birth of those first kid a lot more in the past. They also can't really have kids past their late 40s. Living longer won't change that.

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