I would worry about bias in this study.
Interesting article! Before I read the article I kept thinking that it was going to say my blood type was it...but it's not! What I find funny is that's my sister's blood type and she's a fertile factory. :smileywink: Ariane brings up an interesting point, too. I think this is definitely a great conversation starter and I'm happy to see more studies into the world of IF.
I have O blood type and I am having issues but like Kate said it is a very popular blood type so you can't takeit too seriously.