Why bikes? you suspiciously ask.
After riding your bike or going to spin class you get off your bike and you've probably noticed that you're a bit numb in the bicycle seat area, i.e. crotch.
Traditional bike seats, the kind with a narrow rear and pointy nose, could lead to or play a role in sexual impotence, sadly.
In fact, there was a study by Boston University in Italy found that the more a person rides, the greater the risk of impotence or loss of libido -- seriously! And, mountain bikers experience 'saddle-related trauma' as well.
Those crafty bicycle seats mostly affect men's love lives, however, women can have similar issues to men, i.e. low sex-drive or sexual dysfunction.
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Or, you could try a different position while riding your bike.
Or, you could just continue riding your bike, like you do, with a numb crotch, and become a Nun or Monk. I hear they have some great internships!