Why so quick to say it's the women having trouble concieving? One thing I know they have documented is that sperm counts and viability in humans has been going down. by a lot. Could be
pollution, could be environment, could be all that backpacking and knocking 'em around slathered
in body glide to keep 'em from chafing - or heck could even be all that tea drinking out of a nalgene bottle. Short answer is they don't know *why* in general it's dropping, but it is.