Well, the thing is, you can have a low sperm count and still conceive, right? I meant we're talking about, what, millions of sperm to start with? I believe the article said that the samples that they had been taking over the years show a steady decrease in sperm levels, the decrease being more marked in the years since disposable diapers were used, and they believed, in part, it was contributed to this temperature increase. As I said, it's been a while since I read the article, I might be forgetting stuff. It was in some scientific journal my college roomate read (she's in genetics now turning mice different colors). It'd be interesting to compare conception rates around 1800 or even 1900 vs today. Think about how many people go to fertility specialists every year. Granted, some of that is women putting off having kids until their 40s, but still one wonders. Sorry, I find this stuff fascinating for some reason.