Researchers from the University of California, San Diego, have found that children who are too clean are at a higher risk of developing inflammation and disease. Normal skin bacteria that act to balance immune response protect the body from overreacting to cuts and other injuries. Excessive cleanliness is actually impairing children's natural healing function and putting them at an increased risk for disease.

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Children who grow up on farms and are exposed to all sorts of bugs, worms and natural elements have demonstrably less allergies and autoimmune problems than urban children who spend most of their time indoors. Playing outside barefoot every now and again and digging in the dirt more often would do wonders for the health of today's youngsters.