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Survey: A quarter of Shanghai kids lack sleep

Children lacking sleep tend to be poor performers at school compared with those who have enough sleep, a local research found out.

Doctors at Shanghai Children's Medical Center said they studied students at ten local primary schools and divided them into two groups -- one slept less than nine hours a day and the other slept more than 10 hours a day.

"The group that slept less scored lower in all the eight test categories from memory, logic reasoning to attention," said Dr Jiang Fan, the research leader. "The result surprised us as we never realized that the amount of sleep can make such a big difference in children."

She said primary school students should sleep for ten hours per day, while those at middle school should sleep for nine hours.

"However many children don't have enough sleep due to heavy academic burden, bad sleeping habit and parents' low awareness," she said. "About 20 to 30 percent of children have sleep problems, which can result in higher risks of hypertension, obesity and diabetes in their adult years."

The city's first children's sleep disorder treatment center was established at the Shanghai Children's Medical Center to address the problems.


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