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A recent Harvard study found men who wore boxers had about 25% more sperm than those who wore briefs | Video - Health
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Boxers or briefs? Loose-fitting underwear may benefit sperm production | News | Harvard T.H. Chan School of Public Health
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Harvard Study Determines What Type Of Underwear Is Best When It Comes To The Health Of Your Sperm - BroBible
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Theodore Roosevelt/N(1858-1919). 26Th President Of The United States. Roosevelt As A Boxer While A Student At Harvard. Photographed C1880. - Walmart.com
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