I wont comment too much on the actual news story, other than to say, I think this woman had other concerns, chemotherapy has a lot of dangers, and I applaud her for looking into this rather than conforming to what she's supposed to do, not only can it lower IQ it can also cause alot of very serious side effects, infertility being one. Cancer can be cured without chemo & some ppl have chemo and still die of cancer, so its one of those things, its not cut and dry. (before anyone shouts at me for this, i've had cancer myself, breast cancer at the age of 17)
In saying that, yes, intelligence is a big thing in my eyes, I have to admit (and im being brutally honest here) I would be very upset if LO had some sort of learning disability or wasn't at the same level as their peers. Its not something you think about so much when they are babies, but when they start school, its a constant niggling thought, every parents worst fear is being told that their child isn't performing as well as others. Intelligence might not come from what we learn in school, but its a pretty good guide, yes, some people get well paid jobs without a good education, but lets be fair the chances aren't very high. I want my LO's to have a good job, good money, best education ect, but I value health more than that. Even though i'd be upset if they aren't intelligent, i'd also be upset if they wern't happy, grounded people.
At the end of the day, if you look back and say - i done the best I can, I didn't have them around stressful environments, I read them stories, encouraged them to learn (outwith school) then what more can you do...