The idea that sperm counts are declining appears to be a myth, albeit one that has many concerned. Perhaps one wouldn’t be so surprised to see who was spreading it. https://harryfisch.com/wp-content/uploads/PDF-RP-Declining-Worldwide-Sperm-Counts-Disproving-a-Myth.pdf …https://twitter.com/s_r_constantin/status/1108460410837962752 …
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One of the responses passed along this article—https://academic.oup.com/jcem/article/92/1/196/2598434 … Let me give a few thoughts.
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I’m drawn to two Figures; Fig 1 shows (I believe) a matched sample. I see a 10% decline in T between ‘87 and ‘95; assuming those are 68% error bars, it’s about 2sigma; from ‘95 to ‘02 I see overlapping curves (ie, no evidence). Now that doesn’t mean there’s not a signal! (...)
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