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Men who wear looser-fitting boxer shorts have 25 percent higher sperm concentration, researchers say
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Study: Men who prefer boxer shorts have higher sperm concentration
Men who wear tight boxers produce lower quality SPERM, study reveals - Mirror Online
Wearing boxer shorts boosts sperm count, scientists say, Men's health
Men who wear boxer shorts have far better sperm, study suggests
A Urologist Settled the Boxers vs. Briefs Debate for Sperm Health
Wearing boxer shorts boosts sperm count, scientists say, Men's health
Men who wear tight boxers produce lower quality SPERM, study
9 benefits of sleeping naked during the heatwave - which are more than just a good night's sleep - Mirror Online
How Men's Underwear Can Affect Sperm Quality: Dispelling the Myth – Drawlz Brand Co.
Boxers or briefs? Choice could affect a man's sperm count, study says
