The study focused on 785 children aged 9 to 12 from 10 different states and it confirmed that 18% were overweight by the time they reached the sixth grade.Children who do not sleep nine or more hours a night when they are in the third grade are more likely to gain weight by the time they are in the sixth grade.
The conclusion of the study is very simple:
“Our findings also provide additional (另外的) support for policies that approve of later school start times.The very early school start times for U. S. children have raised concerns in the medical community because of their apparent negative effects on sleep duration (延续性) and,consequently,children's general academic and behavioral functioning,” Reuters reports.
According to National Sleep Foundation,children in first grade should sleep from 10 to 12 hours a night.
Dr. Julie Lumeng's report was published in the journal of the American Academy of Pediatrics (小儿科) in November.
语篇解读:美国密歇根大学进行的一项研究表明:9至12岁的孩子睡眠不足可能导致肥胖。研究者称:睡眠不足使孩子们感到苦恼、在校不活跃、不乐意学习,使得其发胖的可能性变大。睡眠不足可能引发的问题使医学界更为关注美国学生上课时间过早的问题。
1.According to Dr. Julie Lumeng,if children lack sleep,they .
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