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Lack of sleep among new school-goers leads to behavioral, cognitive problems
Date:9/1/2007

rt sleep duration multiplied by 3.1 the risk of low performance on the Peabody Picture Vocabulary TestRevised. This suggests that language acquisition and the consolidation of new words into memory could be significantly impeded by chronically shortened sleep duration throughout childhood, said Dr. Montplaisir. Low performance on the Block Design subtest was also observed in the short increasing sleep group. This means that, although sleep duration improved at three years of age, the risk of scoring low on the Block Design subtest at six years of age remained more than 2.4 times higher. This finding points to an early critical period for cognitive development that may be jeopardized by short sleep duration, noted Dr. Montplaisir.

The results also demonstrate a significant relationship between high HI scores at six years of age and a short increasing sleep duration pattern. Although sleep duration improved at three years of age, the risk for high HI scores at six years of age remained 3.2 times higher. There is a critical period in early childhood where the lack of sleep is particularly detrimental on various aspects of development even if the sleep duration normalizes later on, warned Dr. Montplaisir.

The results of this 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 three-and-a-half years, to ensure optimal cognitive performance at school entry, said Dr. Montplaisir.

It is recommended that children in pre-school sleep between 11-13 hours a night, and school-aged children between 10-11 hours of sleep a night.

The American Academy of Sleep Medicine (AASM) advises children to follow these steps to get a good nights sleep:

  • Follow a consistent bedtime routine.

  • Establish a relaxing setting at bedtime.

  • Get a full nights sleep every night.

  • Avoid foods or drinks th
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Contact: Jim Arcuri
jarcuri@aasmnet.org
708-492-0930
American Academy of Sleep Medicine
Source:Eurekalert

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