Most parents want their children to live in an environment that's clean and sanitary. We all buy home appliances that allow us to keep our homes as spotless as possible with little effort.
But increasingly, research indicates that a little bit of dirt and bacteria may be a good thing. The newest study to lend support for the so-called "hygiene hypothesis" finds children are less likely to have allergies if they live in homes where dishes and food utensils are washed by hand rather tha...
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