hygiene theory combined with some of this timing of food exposure could explain a lot of this rise in allergies. Scientists are trying to be open-minded here and just see what else is at play. One idea is that maybe if an adult got sick with a flu or some other serious illness, their body's immune system might be recalibrating.
In the past few decades, the rate of food allergies in both children and adults has dramatically increased. What’s causing this rise, and what can we do about it?
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