information:extraction, structural:reformatting
Distribution

Testosterone has been detected at variably higher and lower levels among men of various nations and from various backgrounds, explanations for the causes of this have been relatively diverse.

People from nations of the Eurasian Steppe and Central Asia, such as Mongolia, Kyrgyzstan and Uzbekistan, have consistently been detected to have had significantly elevated levels of testosterone, while people from Central European and Baltic nations such as the Czech Republic, Slovakia, Latvia and Estonia have been found to have had significantly decreased levels of testosterone.

The region with the highest-ever tested levels of testosterone is Chita, Russia, the people group with the highest ever tested levels of testosterone were the Yakuts.