[GeronL]

If the parents and grandparents were also raised in such a clean environment it makes sense.

[Ditter]

My brother and I were both raised with dogs, cats, chickens, cows. playing in the ditch, making mud pies, going barefoot all summer and on and on and on, very rural lifestyle. We both have severe allergies, inherited from both sides of our families. We didn't get them from being too clean. My inhaled (dust, grass, etc.) allergies have lessened and others have taken their place. Food allergies, corn, chocolate etc. have remained the same. Not much asthma anymore, thankfully. This too clean meme is just junk.