Two new studies contribute to the body of research supporting the idea that getting enough rest helps children at school.
The research, released Saturday in the journal Sleep, is timely, as children try to get back into the school routine and their sleep patterns change as they adjust from late nights and leisurely mornings to earlier bedtimes and rise-and-shine wake-up calls.
Dr. Jacques Montplaisir of the Sleep Disorders Centre at Sacre-Coeur Hospital in Montreal and his colleagues tracked close to 1,500 children from five months to six years of age, and their findings suggest that youngsters who got less sleep were more likely to have behavioural and cognitive problems in the classroom.
"The results of the paper highlight the importance of giving a child the opportunity to sleep at least 10 hours a night throughout childhood, especially before the age of 3 years, to ensure optimal cognitive performance" in school, Montplaisir said in a statement.
And a study by Jan Van den Bulck in Leuven, Belgium, looked at teenagers and found that the use of cellphones for calling and text messaging after lights out was prevalent. Only 38 per cent of the more than 1,600 teens studied said they never used their mobile phone after going to bed.
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How much sleep do you get each night and do you notice a difference in performance when you don't get enough sleep?