Humans were working their asses from 4-5 in the morning, up to late nights, walking miles and miles, carrying heavy stuff (women with their infants strapped on

Humans were working their asses from 4-5 in the morning, up to late nights, walking miles and miles, carrying heavy stuff (women with their infants strapped on their back, or in a pouch working in the field/farm). I know, because i knew such strong person that was frickin healthy even in her 90 years - one of my grand grand grand mom. Rosy cheecks, wrinkled face of a worker. Still later in her years, was no problem for her waking up and working a lot.