Men who wear boxer shorts produce higher quality semen, study

Which men's underwear is best for healthy sperm? Science finds the

Boxers Vs Briefs: Men Who Wear Boxers Have Higher Sperm Count

New research found men who wear boxer shorts have higher sperm

Man repeatedly injects himself with semen in attempt to cure chronic back pain, The Independent

reproduction - latest news, breaking stories and comment - The Independent

Harvard Study Determines What Type Of Underwear Is Best When It

Science Has Resolved the Question of Boxers vs. Briefs

Boxer shorts - Wikipedia

Boxers Vs Briefs: Men Who Wear Boxers Have Higher Sperm Count