Bryan Johnson· Author
In men, total nighttime erection may be a penile aging marker, decreasing w/ age & correlating w/ erectile dysfunction scores.
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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.
In men, total nighttime erection may be a penile aging marker, decreasing w/ age & correlating w/ erectile dysfunction scores.
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