The gross reason science says nail biting is actually good for kids.

The gross reason science says nail biting is actually good for kids.
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Before you slap your child's hand out of his mouth, consider this new study showing that a nail-biting habit could actually save you on doctor bills in the future.

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In a New Zealand study of 1,037 children, researchers found that children who had reportedly had been biting their nails or sucking their thumbs at young ages were found to be less reactive to the allergy skin prick test when by the time they were 13. And those results continued to hold true when they were tested again at age 32.

Why? According to the study, "childhood exposure to microbial organisms reduces the risk of developing allergies."

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Basically, eating all that gross stuff kids picked up on the playground is building their immune system. Its sort of a "what doesn't kill you makes your nails weaker but your body stronger."

Of course, the study doesn't suggest that you make your kids pick up these habits, but don't you want your kids to grow up big and strong like Britney Spears and Will Smith?

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