Try to remember grade school. (This may take either a few seconds or hours, depending on how far into the vault those memories are located.) Remember when it came time for lunch. Now, try to remember how many times you heard the phrase "food allergy."
If you're in your mid-20s or older, odds are the answer is "rarely, if ever." But, man, times have changed.
If you have children of your own, or have walked within 100 feet of a school recently, you know that's not the case anymore. We're bombarded with warnings about food allergies almost on a daily basis, and that's because they're a big problem. They've risen a whopping 50% between 1997 and 2007, and no one's quite sure why. But a new study from the University of Chicago not only offers a possible cure, but a possible cause.
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