Ok, it takes long enough for the BIG OOOOOOOOOO! Am i right girl? Read this if you take spining classes and wonder why IT'S numb down there....trying to help.
Riding a bike doesn't only hurt the male parts — it can have numbing effects on a woman's nether-regions too.
A new study from Yale University has found that female cyclists who biked more than ten miles a week experienced less "genital sensation" than female runners did.