Babies aren't only healthier if their mom's quit smoking -- they're happier. That's the finding from a new British study.Researchers followed mothers and babies for two years. They say women who never smoked - or quit - had easygoing, cheerier and more adaptable babies, while women who didn't had the most difficult children, with low scores for positive moods.
Researchers say it's a significant association, and that is not due to chance.
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