Late bedtime, less sleep can make kids gain those extra kilos
Washington D.C. [USA], Sep 7 (ANI): Parents, you may want to put your kids to bed early as a recent study has linked late bedtime to weight gain.
Researchers at the University of Birmingham found that Chinese children who go to bed later and sleep less are more likely to be more overweight.
The study also indicated that later bedtimes may place children at increased risk of obesity - even if they are getting 'enough' sleep over the course of the night.
Birmingham's research into the sleeping habits of 2,795 youngsters, aged 9 to 12, from the city of Guangzhou, in southern China, showed a link between sleep duration and the amount of body fat.
Research indicated that the Chinese children were sleeping less than youngsters in the United States and Europe, who had participated in similar studies - differences which may be a result of a focus on studying and academic achievement in China.
In the study, scientists worked with Chinese counterparts at Sun Yat-Sen University and Guangzhou Center for Disease Control and Prevention.
Their findings showed that children sleeping longer have lower Body Mass Index (BMI) scores than those sleeping less. For every hour later that a child goes to bed, their BMI score increases by a small amount.
Although the differences in BMI scores seem insignificant, there is evidence that even a small change in BMI score is clinically important and associated with significant change in health outcomes.
There is increasing evidence showing that high-quality, adequate sleep is important for an overall healthy body, whilst sleep duration has been decreasing over time among children and adolescents.
Researcher Peymane Adab said that the study contributes to existing evidence for sleep duration as a risk factor for obesity in childhood, and later bedtime as an additional risk factor - regardless of sleep duration.
"Children in this study were getting less sleep than reported for children of similar ages in Western countries, plus their usual bedtime was relatively later than expected. These differences are likely to be cultural and due to the overemphasis on studying and academic achievement in China."
She added that behaviours which can contribute to obesity, such as TV watching and snacking, were more common in the later evening. Abnormalities in children's sleep-wake patterns might also contribute to the problem
The study appears in the Journal of Epidemiology. (ANI)
This story has not been edited. It has been published as provided by ANI
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