What do vitamin D and testicles have in common? Though your penis gets the ...

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Dear Mark — I’ve heard from a couple of sources that tongkat ali increases ...

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Have you heard the rumor that men develop small testicles after vasectomy? It’s not ...

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Poor ejaculation or low semen volume have many causes.. At least partly because ejaculation ...

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From the Mailbag… Hi Mark, Is having small testicles bad? Are there some medical ...

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Hi Mark, Is there a link between small testicles and manboobs? I’m dealing with ...

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