Men: When Trying to Conceive, Don't Ride Bike to Supermarket to Buy Canned Food

Couple of recent studies re things that are bad for male fertility. One, easy to avoid. One, not so much.

In the "You actually got money for this research?" department, we have a study which showed that men who bicycle for at least 5 hours a week have lower sperm counts and poorer sperm motility than men who don't. Here's the original study abstract, for those who like to see the numbers.

And in the more insidious news department, we have yet another study showing that BPA, which the FDA refuses to ban, causes endocrine disruption. This study, the third of three examining the effect of BPA on male sexual function and fertility, showed a reduction in semen quality in men with higher levels of BPA in their urine. BPA is found everywhere, from food packaging to sales receipts to dental sealants. And, increasingly, in our bodies.

Sperm scene from "Everything You Always Wanted to Know About Sex."