I read recently that children need to play in the dirt because it contains very helpful organisms which help to develope the immune system..It does seem likely that our obsession with cleanliness may have hurt us and our kids. I have also read that bathing all the time is not a good thing for kids because the bacteria on their skin is protective and helpful..In addition, during showers and baths they say that we take in, through our skin, the chlorine and other things placed in our water to keep it safe and those substances also might be harmful to us..Man, thinking he/she is so smart, may have messed up the good health of more than one generation.
As if the allergy problems outweighed the black death and all the other infections we have now eliminated that have killed millions over the years.