From slate.com 12-12-06:
Intensive bicycling may dull female genital sensation. Previous studies correlated cycling with dulled male genital sensation and erectile dysfunction. This study compared female runners to young women who “consistently rode an average of at least 10 miles per week.” Findings: The “cyclists have a decrease in genital sensation. However, there were no negative effects on sexual function and quality of life.” Authors’ hypothesis: “While seated on a bicycle, the external genital nerve and artery are directly compressed,” which “may lead to compromised blood flow and nerve injury.” Why male but not female dysfunction? Scientific answer: “Female cyclists may benefit from anatomical differences that produce less compression.” Sarcastic translation: You don’t say. (Fine print: Compared to the runners, the cyclists were older, fatter, and “more diverse in their sexual orientation.”) (For Human Nature’s previous updates on female arousal, drugs, and electric shocks, click here, here, and here. For an update on impotence drugs, click here.)
so cyclists are older, fatter and more diverse in sexual orientation! interesting.