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    Longer sleep duration could lessen children’s risk for T2D

    Increasing a child’s average nightly sleep duration may help to reduce the risk of type 2 diabetes by lowering several markers of the disease, according to the results of a recent study published in Pediatrics. The study found a strong inverse association between sleep duration and adiposity, insulin resistance and fasting glucose.

    “Sleep duration has been shown to be associated with type 2 diabetes and adiposity in adults though the relationship is complex,” Claire M. Nightingale, PhD, of the Population Health Research Institute at St George’s, University of London told Medical Economics. “Sleep duration has also been associated with adiposity in children with increased sleep duration being associated with lower levels of adiposity, though the association with type 2 diabetes risks has been little studied in children.”

    Nightingale and colleagues conducted a cross-sectional study of 4,525 children aged 9 years to 10 years from the United Kingdom. Participants reported usual time of going to bed and getting up on a school day. Based on these data, the researchers calculated sleep time, which was then evaluated with fasting blood samples and physical measures including height, weight, bioimpedance and blood pressure.

    The average duration of nightly sleep was 10.5 hours. Those participants with longer sleep duration were slightly younger and more likely to be girls.

    “We found that longer sleep duration in children aged 9 to10 was associated with lower levels of adiposity (body mass index, fat mass index) and type 2 diabetes risk markers (insulin resistance, fasting insulin and fasting glucose) but not with cardiovascular disease markers,” Nightingale said.

     

    Next: More study details

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