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by giardini 459 days ago
"They hypothesized that early (first 10000 days) exposure to micro-organisms might play a key role in training the immune system not to over-react to (harmless) micro-organisms later on in life, and thus "train" the immune system better. Their hypothesis now seems to have been validated."

10000 days is 27 years, which seems an order of magnitude too large. 2.7 years(~ one thousand days) would be about right, perhaps?