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  • Increased screen time...

Increased screen time linked to weight gain in children: Study

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-07-05T10:15:06+05:30  |  Updated On 5 July 2021 10:15 AM IST
Increased screen time linked to weight gain in children: Study
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The study was conducted prior to the COVID-19 pandemic, but its findings are especially relevant for the pandemic.

USA: Children aged 9-10 years who indulge in greater screen time are more likely to gain weight after one year, suggests a recent study in the journal Pediatric Obesity.

The study found that each additional hour spent on virtually all forms of screen time was associated with a higher body mass index (BMI) one year later. In particular, researchers found that each extra hour spent watching or streaming television, YouTube videos, video games, video chat, and texting led to a higher risk of weight gain one year later. At the start of the study, 33.7% of children were considered overweight or obese, and this increased to 35.5% one year later, a proportion that is expected to rise in the late teens and early adulthood.

BMI is calculated based on height and weight. Researchers analyzed the BMI z-scores, which is relative weight adjusted for a child's age and sex, of 11,066 preteens who are part of the Adolescent Brain Cognitive Development Study, the largest long-term study of brain development in the United States. The children answered questions about their time spent on six different screen time modalities, including television, social media, and texting.

"Screen time is often sedentary and may replace time for physical activity. Children are exposed to more food advertisements and are prone to snacking and overeating while distracted in front of screens," said lead author, Jason Nagata, MD, assistant professor of pediatrics at the University of California, San Francisco.

"A negative body image and subsequent overeating may be a result of exposure to social media and unattainable body ideals," said senior author, Kyle T. Ganson, PhD, assistant professor at the University of Toronto's Factor-Inwentash Faculty of Social Work. "This study emphasizes the need for more research on how screen time impacts the well-being of young people now and in the future."

"The study was conducted prior to the COVID-19 pandemic, but its findings are especially relevant for the pandemic," noted Nagata. "With remote learning, the cancellation of youth sports and social isolation, children have been exposed to unprecedented levels of screen time."

"Screen time can have important benefits such as education and socialization during the pandemic, but parents should try to mitigate risks from excessive screen time including increased sedentary time and decreased physical activity. Parents should regularly talk to their children about screen-time usage and develop a family media use plan," said Nagata.

Reference:

The study titled, "Contemporary screen time usage among children 9–10-years-old is associated with higher body mass index percentile at 1-year follow-up: A prospective cohort study," is published in the journal Pediatric Obesity.

DOI: https://onlinelibrary.wiley.com/doi/10.1111/ijpo.12827


obesityscreen timebody mass indexPediatric Obesitycognitive development
Source : Pediatric Obesity
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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