This may be the first solid evidence that lifespan is about the same as it has been throughout history (and maybe well back into prehistory), though it's long been suspected. However, it's well known that life expectancy has gone up significantly. Span is how long we live if illness, accident or violence does not kill us, until the body just can't hold together any longer, but expectancy averages in the effects of premature death.

Maybe why the large number of kids,Diseases would cull many,now medicines have pretty well eliminated the high death rates,although Women still die during of after delivering a child,rare,but it does happen.I understand that's the most dangerous time in a Woman life,when She's pregnant....

Surrounded & filled by all-natural sourced food & clothing, except for those pesky plaques......