Almost entirely off-topic, but... Frank Deford lost a little girl to cystic fibrosis when she was 8 or 9. His book about Alex goes into some discussion of kids, gender and athleticism: how once kids with CF survive past early childhood, boys typically live a few years longer (he was writing in the early 80s, I don't know if this is still the case). Doctors don't know why this is but he suspects it's because little boys with CF are still encouraged to play outside, and so they still develop lung capacity, etc, and this doesn't happen so much with girls. Alex was a very feminine little girl, but he wished she were more interested in sports - in the end it wouldn't have mattered, but maybe it would have kept her alive a little bit longer...