......and I'm usually filthy (trust me, I've just combed my hair and there were spider's webs and birch seeds in it
cleaning out a shed) and my allergies grow by the year
On the whole I do subscribe to the idea that to be kind of grubby isn't a bad thing, but indoors ? yeah, I use soap, and bleach and the best hoovers I can afford.
Food wise I usually munch my weeds, so if anyone's going to build up an immunity it ought to be me.
I think there are too many parameters for it to be so very clear cut as is often suggested.
One of my Aunts was as allergic to things as I am. We used to have to throw the cat out of the house when she came to visit, and remove the cushions (feathers) too.
An awful lot of what we are now is what our genetics give us, and how that flares up depends on the stimulus they receive. I got the too soft skin with the tendency to flare up with some things, unfortunately.
My sons however seem to be absolutely fine
.......and they were fed the wild foods too, and got absolutely manky through the day, scrubbed back to cherubness at bedtime, and slept clean as a whistle though.
I am also friends with some folks who eschew the entire soap and water business, and their children are no more healthy than mine are; indeed two have had inhalers since they were in nursery.
As for the article; I think it's a factor, but I don't think it's the whole story.
cheers,
M