Testosterone levels show steady decrease among young US men

Re:Testosterone levels show steady decrease among young US men by smogcutter on Thursday January 14, 2021 @02:48PM (#25781452)

Key word there being “selecting”, which makes this a pretty implausible explanation for something we can observe over a couple decades.

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Re:Testosterone levels show steady decrease among young US men by echelon on Thursday January 14, 2021 @04:22PM (#25782773)

Unless production is controlled by the environment rather than strictly genetic factors.

This wouldn't be a genetic argument then.

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Re:Testosterone levels show steady decrease among young US men by whimsicalism on Thursday January 14, 2021 @04:25PM (#25782808)

So then totally irrelevant to the silver fox experiment.

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Re:Testosterone levels show steady decrease among young US men by mcphage on Thursday January 14, 2021 @03:13PM (#25781846)

Hormone production is something that the body controls. It doesn't require multiple generations or genetic selection.

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Re:Testosterone levels show steady decrease among young US men by whatshisface on Thursday January 14, 2021 @03:15PM (#25781867)

I don't get what you're saying, every phenotype is something "that the body controls."

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Re:Testosterone levels show steady decrease among young US men by XorNot on Thursday January 14, 2021 @06:14PM (#25784346)

The point is that it's not a genetically determined effect.

Testosterone in your body fluctuates throughout the course of a single day, based on what happens to you in that day.

So at a societal level, we'd expect some general zeitgeist based average to fall out of other factors, potentially.

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