Punishment of exploitative behaviors harmful to the group was likely a recurring problem in the ancestral environment.

The ancestral environment likely had relatively little trade, division of labor, and capital goods.

In the ancestral environment a man would be likely to have more offspring if he got his pick of the most fertile-seeming women.

Let us assume that the human species had evolved in an ancestral environment without light.

Humans in the ancestral environment did not live in states and likely rarely had interactions with groups outside of a very local area.

The past explains the present: Emotional adaptations and the structure of ancestral environments.

Adaptation to a very different ancestral environment may be maladaptive in the current one.

It has been argued that the ability of the human brain by far exceeds what was needed for survival in the ancestral environment.

Thus, one possible remedy for these diseases is changing diet and exercise activity to more closely reflect that of the ancestral environment.

One example being that humans are argued to find beautiful and prefer landscapes which were good habitats in the ancestral environment.