1000 years ago there was no penicillin, no quinine, no way to fix appendicitis, ulcers, tonsillitis etc with simple surgery.
More people died with Pneumonia than any other cause. It made lot of sense to get girls married early when they were able to conceive.
1000 years ago? It was the same 90 years ago.
I would add that I'm not on SSA yet, but I was part of the last generation of children to live in fear of polio: I remember my parents having a thick medical guidebook, the size of a college dictionary, and a whole chapter was set side to provide information on how to avoid polio, how to diagnose it as early as possible, and what was likely to happen to those who became juvenile polio patients.
That makes sense. 1000 years ago.
But still, life expectancy is influenced by infant mortality.
“Life expectancy differs from maximum life span. Life expectancy is an average, computed over all people including those who die shortly after birth, those who die in early adulthood in childbirth or in wars, and those who live unimpeded until old age, whereas lifespan is an individual-specific concept and maximum lifespan is an upper bound rather than an average.” - wikipedia
I don’t think human lifespan has changed in 40,000 years.
That makes sense. 1000 years ago.
But still, life expectancy is influenced by infant mortality.
“Life expectancy differs from maximum life span. Life expectancy is an average, computed over all people including those who die shortly after birth, those who die in early adulthood in childbirth or in wars, and those who live unimpeded until old age, whereas lifespan is an individual-specific concept and maximum lifespan is an upper bound rather than an average.” - wikipedia
I don’t think human lifespan has changed in 40,000 years.