A large-scale study at Harvard confirms what smaller studies have shown: boxers are better for sperm count than briefs.
A large-scale study at Harvard confirms what smaller studies have shown: boxers are better for sperm count than briefs.
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TCWN August 11-17, 2018 by TC Weekly News - Issuu
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Boxers or briefs? Prospective dads have an easy choice — Harvard Gazette