RISE IN LIFE EXPECTANCY. “Longer lifespans became more common recently in human evolution. This increased longevity is attributed by some writers to cultural adaptations rather than genetic evolution, although some research indicates that during the Neolithic Revolution natural selection favored increased longevity. Nevertheless, all researchers acknowledge the effect of cultural adaptations upon life expectancy.” Neolithic life expectancy was 20 years, and in 2010 the world average was 67.2 years.
http://en.m.wikipedia.org/wiki/Life_expectancy
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022