Bryan Johnson· Author
Without these regular exercises, the penis can develop scar tissue over time, making it harder to get erections. It's a classic case of "use it or lose it."
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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.
Without these regular exercises, the penis can develop scar tissue over time, making it harder to get erections. It's a classic case of "use it or lose it."
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