The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
these huge variations that are observed of anywhere from 15 million sperm per milliliter or, in some males who are not producing sperm for whatever reason-- we'll talk about those reasons in a little bit-- as low as 5 million sperm per milliliter, all the way up to 100 or maybe even 200 million sperm per milliliter. Huge variation-- the cause of which is not always clear but is certainly determined in part by the frequency of ejaculation.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
the idea that 100 years ago or maybe even 35 years ago, the typical male ejaculate contained 100 million sperm per milliliter, and nowadays it's down to 15 to 20 or 50.