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One study suggests that reducing screen time and the right amount of sleep and physical activity are linked to improved cognition in children.
The observational study analyzed data from a larger study funded by the National Institutes of Health, covering 4,500 children aged 8 to 11 years.
The researchers compared the time spent on screens, sleeping and doing physical activity with the Canadian Movement Guidelines 24 hours a day, created by the Canadian Society for Exercise Physiology.
The study associates children who adhere to the guidelines – which include nine to 11 hours of sleep, at least an hour of physical activity and less than two hours on screens – with improvements in cognition.
The researchers found that even just limiting screen time or getting enough sleep had the strongest connections for better cognition.
"The data suggest that good sleep and good physical activity are associated with improved school performance, while physical activity is also related to improved reaction time, attention , memory and inhibition, "says Jeremy Walsh, Ottawa, Canada, in a statement.
The study was published last week in The Lancet Child and Adolescent Health.
The study found that only one in 20 children in the United States met the three guidelines, while nearly one in three children did not meet any of the three guidelines.
Walsh said that even if children who spent more than two hours in front of the screens were linked to poor cognition, additional research is needed to study the impacts of different forms of screen time, such as educational experiences and experiences. entertainment experiences.
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