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Men who wear tight boxers produce lower quality SPERM, study reveals - Mirror Online

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Men who wear looser-fitting boxer shorts have 25 percent higher sperm concentration, researchers say

Can wearing tight underwear lower sperm count and impact male fertility?

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Men who wear tight boxers produce lower quality SPERM, study reveals - Mirror Online

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Men who wear tight boxers produce lower quality SPERM, study

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Men wearing tight underwear have lower sperm count