June 12, 2012

GIVE THEM BACK THEIR CHILDHOODS:

To Sniff Out Childhood Allergies, Researchers Head To The Farm (PATTI NEIGHMOND, 6/11/12, NPR)

Allergies are on the rise these days, especially in children. Nearly half of all kids are now allergic to something, be it food, animals, or plants. Federal health officials say that rate is two to five times higher than it was 30 years ago.

And as researchers are trying to understand why, they're increasingly looking at kids who grow up on farms.

The leading theory behind the uptick in childhood allergies, says Andy Nish, a physician with a private practice in Gainesville, Ga., is the hygiene hypothesis. Paradoxically, the theory goes, we're too clean.

 
"It looks like with our modern conditions and cleanliness that we have fewer and fewer germs to fight off," Nish says. Our immune systems protect us by learning to fight off foreign invaders, whether they're harmless or not. We can't train our defenses if we don't get exposed. And if you're allergic to one thing, you're likely allergic to a number of things.

Posted by at June 12, 2012 5:07 AM
  

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