This article is from the source 'guardian' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at https://www.theguardian.com/us-news/2018/sep/27/us-children-sleep-screen-time-cognitive-skills-study

The article has changed 7 times. There is an RSS feed of changes available.

Version 5 Version 6
US kids spend too much time in front of a screen and too little asleep, study finds US kids spend too much time in front of a screen and too little asleep, study finds
(about 2 months later)
Only one in 20 kids in the United States meets guidelines on sleep, exercise and screen time, and nearly a third are outside recommendations for all three, a new study has found.Only one in 20 kids in the United States meets guidelines on sleep, exercise and screen time, and nearly a third are outside recommendations for all three, a new study has found.
On average, children aged eight to 11 spent 3.6 hours a day glued to a TV, mobile phone, tablet or computer screen, nearly double the suggested limit of two hours, researchers found.On average, children aged eight to 11 spent 3.6 hours a day glued to a TV, mobile phone, tablet or computer screen, nearly double the suggested limit of two hours, researchers found.
Too little sleep and excess screen time were clearly linked to a drop-off in cognitive skills, such as language ability, memory and task completion, they reported in the Lancet Child & Adolescent Health.Too little sleep and excess screen time were clearly linked to a drop-off in cognitive skills, such as language ability, memory and task completion, they reported in the Lancet Child & Adolescent Health.
“We found that more than two hours of recreational screen time in children was associated with poorer cognitive development,” said lead author Jeremy Walsh, a researcher at the Children’s Hospital of Eastern Ontario Research Institute.“We found that more than two hours of recreational screen time in children was associated with poorer cognitive development,” said lead author Jeremy Walsh, a researcher at the Children’s Hospital of Eastern Ontario Research Institute.
“Based on our findings, paediatricians, parents, educators and policymakers should promote limiting recreation screen time and prioritising healthy sleep routines during childhood and adolescence.”“Based on our findings, paediatricians, parents, educators and policymakers should promote limiting recreation screen time and prioritising healthy sleep routines during childhood and adolescence.”
Walsh and his team looked at data – based on detailed questionnaires – for 4,520 children spread across 20 locations in the United States.Walsh and his team looked at data – based on detailed questionnaires – for 4,520 children spread across 20 locations in the United States.
Screen time harm to children is unproven, say expertsScreen time harm to children is unproven, say experts
They also tested the children for six kinds of cognitive skills, adjusting the results for household income, puberty development and other factors that might affect performance.They also tested the children for six kinds of cognitive skills, adjusting the results for household income, puberty development and other factors that might affect performance.
The results were measured against the Canadian 24-hour Movement Guidelines for children.The results were measured against the Canadian 24-hour Movement Guidelines for children.
For sleep and exercise, the recommendations align with those of the World Health Organization, but Canada is the first country to propose limits for time spent in front of a backlit screen.For sleep and exercise, the recommendations align with those of the World Health Organization, but Canada is the first country to propose limits for time spent in front of a backlit screen.
Nearly 30% of children failed to meet any of the recommendations, more than 40% met only one, a quarter met two, and only 5% conformed to all three.Nearly 30% of children failed to meet any of the recommendations, more than 40% met only one, a quarter met two, and only 5% conformed to all three.
Half the kids were getting enough sleep, 37% remained within the screen time limits, and only 18% met the physical activity recommendation.Half the kids were getting enough sleep, 37% remained within the screen time limits, and only 18% met the physical activity recommendation.
“The more individual recommendations the child met, the better their cognition,” the study concluded, noting that screen time was the most important factor.“The more individual recommendations the child met, the better their cognition,” the study concluded, noting that screen time was the most important factor.
In contrast to earlier research, lack of exercise did not correlate with poorer performance on the cognition tests.In contrast to earlier research, lack of exercise did not correlate with poorer performance on the cognition tests.
The strong link between time spent staring at a screen and brain function “potentially reflect[s] the interruption of the stress-recovery cycle needed for growth in children”, commented Eduardo Esteban Bustamante, an assistant professor at the University of Illinois’ College of Applied Health Sciences who did not take part in the study.The strong link between time spent staring at a screen and brain function “potentially reflect[s] the interruption of the stress-recovery cycle needed for growth in children”, commented Eduardo Esteban Bustamante, an assistant professor at the University of Illinois’ College of Applied Health Sciences who did not take part in the study.
“Each minute spent on screens necessarily displaces a minute from sleep.”“Each minute spent on screens necessarily displaces a minute from sleep.”
Scientists and educators have grown increasingly concerned that constant use of mobile phones from an early age may lead to problems ranging from addiction to attention deficit disorder.Scientists and educators have grown increasingly concerned that constant use of mobile phones from an early age may lead to problems ranging from addiction to attention deficit disorder.
The vast majority of teachers in a recent survey said that smartphones had become a distraction in the classroom, eroding the ability of students to focus.The vast majority of teachers in a recent survey said that smartphones had become a distraction in the classroom, eroding the ability of students to focus.
France urges parents not to allow children under three to watch TV, and American paediatricians also favour a total ban on screen time until at least 18 months.France urges parents not to allow children under three to watch TV, and American paediatricians also favour a total ban on screen time until at least 18 months.
US newsUS news
HealthHealth
ChildrenChildren
TelevisionTelevision
SmartphonesSmartphones
newsnews
Share on FacebookShare on Facebook
Share on TwitterShare on Twitter
Share via EmailShare via Email
Share on LinkedInShare on LinkedIn
Share on PinterestShare on Pinterest
Share on Google+
Share on WhatsAppShare on WhatsApp
Share on MessengerShare on Messenger
Reuse this contentReuse this content