. . . his original estimate of 12-19 hours worked per week did not include food processing, tool making, or general housework, and when such activities were included he estimated that the !Kung worked about 40-44 hours per week.
How many people do you know that spend 44 hours or less per week working, commuting, grocery shopping, cooking, doing housework, running errands, etc.?
[1] http://quillette.com/2017/12/16/romanticizing-hunter-gathere...
Humans stopped being hunter-gatherers for a reason.
Similar for non-life-threatening events. Food input decrease in your area? You barely notice it in the somewhat higher prices, because society is routing food to you from other places. But your hunter-gatherer ancestors would be hungry for days or weeks.
We're better adapted for a harsh, variable environment, and it's funny how our cozy, temperature-controlled dwellings are causing a whole host of new issues.
Do keep in mind that evolution hasn't stopped recently, either. There are plenty of civilization-era evolutionary adaptations in the human genome as well. [1]
[1]: https://www.amazon.com/000-Year-Explosion-Civilization-Accel...