Feed Science Daily: The Hygiene Hypothesis: Are Cleanlier Lifestyles Causing More Allergies For Kids (sciencedaily.com)
A little dirt never hurt. But in today's super-clean world, vaccinations, anti-bacterial soaps, and airtight doors and windows are keeping dirt and disease-causing germs at bay. While staying germ-free can prevent the spread of disease and infections, leading a cleanlier lifestyle may be responsible for an increase in allergies among children.