https://en.wikipedia.org/wiki/Life_expectancy https://en.wikipedia.org/wiki/Life_expectancy Going back as far as we can the life expectancy in the Paleolithic

https://en.wikipedia.org/wiki/Life_expectancy https://en.wikipedia.org/wiki/Life_expectancy Going back as far as we can the life expectancy in the Paleolithic era if you made it to 15 was 54 years. Not far off from today's standard.