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A comment on Why are male testosterone levels falling?. Parent comment

Re:Why are male testosterone levels falling? by Spivak on Sunday November 13, 2022 @09:19AM (#33583296)
Not even evolution, men would just be prescribed testosterone gel/patches as a fertility treatment.
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Re:Why are male testosterone levels falling? by docandrew on Sunday November 13, 2022 @09:23AM (#33583328)
Generally speaking, exogenous testosterone causes a loss of fertility, perhaps counter-intuitively. Men on HRT typically have to pause treatment when they are trying to conceive.
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Re:Why are male testosterone levels falling? by rblatz on Sunday November 13, 2022 @09:25AM (#33583354)
That’s counterproductive, testosterone production is in the testes. Externally supplementing testosterone will actually signal the testes to stop/lower production of testosterone which also lowers production and quality of sperm.
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Re:Why are male testosterone levels falling? by formerly_proven on Sunday November 13, 2022 @09:31AM (#33583402)
Hence the tiny testes on steroid abusers.
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