Bryan Johnson· Author
Scrotal cooling devices used in varicocele (overheated testicles from enlarged veins) treatment restore sperm health within 90 days.
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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.
Scrotal cooling devices used in varicocele (overheated testicles from enlarged veins) treatment restore sperm health within 90 days.
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Scrotal cooling devices used in varicocele (overheated testicles from enlarged veins) treatment restore sperm health within 90 days.