4 ms·
That would be the hygiene hypothesis (https://en.wikipedia.org/wiki/Hygiene_hypothesis https://en.wikipedia.org/wiki/Hygiene_hypothesis), which says that early
by IX-103 4y ago
That would be the hygiene hypothesis (https://en.wikipedia.org/wiki/Hygiene_hypothesis https://en.wikipedia.org/wiki/Hygiene_hypothesis), which says that early exposure to certain microorganisms helps prevent allergies.
- rpmisms 4y agoIt's common country knowledge that chewing on a little dirt is good for toddlers.