Did Reduced Testosterone Levels Help Human Culture Advance?

August 3, 2014 9:05 PM

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Changes in the human skull occurring approximately 50,000 years ago indicate that the rise of culture occurred around the same time as a reduction in testosterone levels, according to new research appearing in the August 1 edition of the journal Current Anthropology.

In the study, lead author Robert Cieri, a biology graduate student at the University of Utah who began this work as a senior at Duke University, argue that people started making art and using advanced tools only after they became nicer to each other. Those gentler personalities required having sligh...

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