The central issue is that around the Paleolithic period, when humans were hunters and gatherers, life expectancy was 35 to 40 years. Individuals were more likely to die early as a result of accidents and attacks by wild animals.
El punto central es que, por el período paleolítico, cuando los humanos eran cazadores-recolectores, la esperanza de vida era de 35-40 años, debido a mayor probabilidad de muerte relativamente temprana por accidentes y ataques de animales salvajes.