A survey of levels of happiness and worry among 200,000 children in the U.K. by researchers at the University of Hertfordshire has found mixed results. 82% of the children, who were aged between six and 14, said they felt happy most of the time but only 11% said they were completely carefree. Girls were a little happier than boys and younger children happier than older ones. 51% of the sample worried about their parents arguing or divorcing and over half worried about violence and street crime. 72% said that boredom was what made them unhappy.
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