I don't -- at least I don't think it has to, because the Island's powers were never explained in a scientific way.
I'm fine with that, but less fine with having trouble figuring out other stuff. Like what was an island thing and what was a human-intervention thing.
I don't think the Island's mystical properties caused the pregnancy problems. I do think that the super high sperm count found in Island males may have been a result of the Island's mojo trying to circumvent the gestation problems caused by the leaky hydrogen bomb.
Now that, I like.
I love you, Nae.
And I you, Cindy (and you just improved my day many-fold. Even with the semi-bitchiness. Which I didn't bat an eyelid at, of course :P ).
Couple of edits, including moving chat down the post a bit. It's not been a good day for staying on topic.