Notes

Wired News: You Dirty, Healthy Rat

If you’re a parent, the “hygiene hypothesis” (that filth improves your immune system) is very reassuring: Wired News: You Dirty, Healthy Rat

Dylan Tweney Jun 19, 2006

If you’re a parent, the “hygiene hypothesis” (that filth improves your immune system) is very reassuring: Wired News: You Dirty, Healthy Rat

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DYLAN TWENEY

If you're bored, you're not paying attention