New research suggests a decrease of testosterone was pivotal for the advance of human civilization. After measuring more than 1,400 human skulls, the changing shape of the male features show a drastic drop of male testosterone levels. This sudden drop coincided with what historians call ‘the great leap forward of Mankind’, a period in which humans developed rapidly and invented new technologies, started to create art and overall created a moresophisticated society. This research suggests that these developments were made possible by the changing male attitude. Since men became less violent and more cooperative, they were able to spend more time crafting and creating.
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