The concept behind this is the hygiene hypothesis.
Although we have to be careful during the flu and cold season, a certain level of germ and microbe exposure can help balance our immune system and shift us away from an allergic profile. It’s important to clean our homes and dishes but a small amount of germ exposure can be helpful.
Other risk factors that can reduce the incidence of allergies and support the hygiene hypothesis include: Daycare, preschool, living on a farm, having multiple siblings.
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