BERLIN (Reuters) - Children who snore perform worse at school, according to a new study by German scientists. "Our study clearly showed that snoring has a detrimental effect on children's performance in school," Christian Poets, head of a joint study by the University of Tuebingen and the Hanover Medical School, said on Friday. Scientists monitored the sleeping behavior of 1,144 school children aged between eight and 10 in the western city of Hanover, measuring pulse rates and blood oxygen levels. The study showed that children who snored continually were three to four times as likely as non-snorers to get poor...