We had a good trip to Chicago and my roommate's baby is darling. I hadn't seen her older daughter, now 3, since she was about seven months old, and it was fun to watch her with my Joe. "When I am four I will be big," she told him earnestly. "Yeah," he said, full of casual savoir-faire, "just like me."
For a brief interlude this week everyone was snot-free, but the interlude is over and I am back on nose-wiping duty. This winter is highlighting a hitherto-unappreciated advantage of homeschooling: less mucus. We have been passing it around and around and around in a big slimy circle. The middle boys had a mystifying malady this week: following a couple of days of fever and malaise, they each had an expanding pus-filled lesion on a finger. Marty's was huge and tight as a drum. It looked like this, only much larger, bigger than his nail. Joe's was smaller, down near his hand, but still nasty. Both the convenient care doctor, who lanced the lesions on Tuesday evening when I began to worry that Marty's bugs were bent on whole-hand hegemony, and our regular doctor, who followed up with them yesterday, were puzzled. The boys seem to be on the mend, though.
On Monday I am leading discussion in my seminar. My topic is persistent organic pollutants and language delay, and I am a little nervous about sustaining two hours of discussion. What if they all thought the readings were boring? I picked a reading from Having Faith, Sandra Steingraber's excellent book about environmental hazards to children who are gestating and breastfeeding, to provide background, and two articles from researchers who study kids exposed to PCBs and dioxin. It's scary stuff.
One of the interesting findings is that kids get much higher doses of these chemicals if they're breastfed, but the breastfed kids fare better than the formula-fed kids. The researchers aren't sure exactly why. Fetuses are clearly more vulnerable than babies (did you know the fetus doesn't have a blood-brain barrier?), but human milk, even highly contaminated human milk, seems to make a difference.
A Michigan team of researchers theorized that it's not the milk, it's the home environment in breastfeeding families. This is the trouble with studying environmental variables that affect language development: it's messy stuff, with bundles of factors all interwoven. What if lactation primes mothers to be more responsive to their children's cues? There's some evidence in support of that idea, and if it's true, then you could argue that breastfeeding shapes the family environment.
I have no idea how you'd measure any of that. Maybe I will change directions entirely and study something nice and quantifiable like traffic-calming devices. One thing is clear to me from these readings: don't eat big freshwater fish if you are a woman in your childbearing years.
Oh, dear, sounds like bloodshed.
***
No blood was actually shed; it was just Bionicle trauma. I read an article on play behavior that said PCBs seem to have gender-bending effects. PCB-exposed girls are significantly more likely to engage in swordplay and the like; PCB-exposed boys are way, way more likely (p<.01, I believe) to have tea parties and play house. A person observing my boys at play might speculate that their body burdens are pretty low based on their love of weapons and explosions and projectiles.
They're home from school today and they'd probably have less Bionicle trauma going on if I were playing with them and not blogging. Catch you later.
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