Okay, my husband is trying to convince me that he shouldn't ride his bike to work, or anywhere really, because it can cause him to have a low sperm count. And he knows I want kids!! His work is farther away than mine, but I have to ride my bike unless he has nothing to go do, like the gym or work. He isn't wanting kids right now, but he throws that in my face? I don't think him riding a bicycle can lower his sperm count permanently, because to go to his job is maybe a 5 minute bike ride, and to the BX or Commissary or the gym is like 10 - 15 minutes one way. And he doesn't do it every day. So if he were to do both these things in a day, he'd spend maybe 50 minutes to an hour on his bike? Max??