A study by Yale researchers in 2006 found that female cyclists had less genital sensation compared with a control group of female runners. As a result, some scientists believe that female cyclists probably are at similar risk for sexual problems as male riders. Mostly I posted this article because the photo they chose for the NY Times article was this woman riding in PORTLAND, OR.
More Info Here: http://well.blogs.nytimes.com/2012/04/02/can-bicycling-affect-a-womans-sexual-health/?ref=science#