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Why spending time around other living things positively affects your health

Posted: February 9 2021

By Markham Heid. How our environments rub off on us, sometimes literally Since 1989, when an American immunologist named David Strachan first introduced it, the “hygiene hypothesis” has gained attention and momentum. In its original form, the hypothesis held that early childhood exposure to germs — meaning infection- or illness-causing microbes — could protect people from […]

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