Want to be a dad? Wear boxers, not skin-tight briefs

Compared to men who favour snug-fitting briefs, devotees of boxer shorts had a significantly higher count and concentration of sperm, researchers reported in the journal Human Reproduction. The sperm were also more lively, and levels of a reproductive hormone were more favourable to generating offspring. Researchers led by Lidia Minguez-Alarcon of the Harvard T.H. Chan School of Public Health in Boston examined 656 men of normal weight, aged 18 to 56, whose partners were seeking infertility treatment at a clinic.
Compared to men who favour snug-fitting briefs, devotees of boxer shorts had a significantly higher count and concentration of sperm, researchers reported in

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FERTILITY, Tracking