Screen time for children: the WHO’s extreme new approach may do little to curb obesity
aim to help parents make healthy choices for their families, suggesting that parents should consider four key questions: is screen time controlled? Does screen use interfere with what your family wants to do? Does screen use interfere with sleep? And, are you able to control snacking during screen time?
Sarah Rose, Staffordshire University
Get children more active. That’s the aim of the World Health Organisation’s new guidelines on physical activity, sedentary behaviour and sleep for children under five years of age. The guidelines make specific recommendations about the amount of sleep, physical activity and screen time children should have each day. For screen time, the guidelines state that children under two years old should get no screen time and children aged two to five should get no more than an hour a day.
While childhood obesity is a global crisis, cuts lives short and has significant economic costs the WHO guidelines on screen time are oversimplified.
The main evidence the WHO guidelines draw on is a 2017 review of evidence looking at the relationship between sedentary behaviour and health in children under the age of five. Of the 96 papers identified in this review, 54 focused on the association between obesity and screen use. Of these, the authors of the report rate all but one as “very low-quality evidence”, using the GRADE framework – a widely used tool for rating medical evidence.
There are two main reasons for the evidence being rated as low quality. First, almost all the studies are observational, meaning they can’t show cause and effect, only associations between screen time and obesity. Second, the findings are not consistent. Of the 54 studies, 25 found no association between screen time and obesity, 13 found that higher amounts of screen time were related to higher levels obesity and 16 found a mixture of results, depending on the type of screen time and obesity measure used.
There are better guidelines
Other guidelines on children’s screen time published by health professionals, such as the (RCPCH) and the American Academy of Pediatrics (AAP), do a better job of reflecting the complexities of the evidence and refrain from making recommendations based on time alone.
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Dr Marina Nani
Editor-in-Chief
Editor-in-Chief of Rich Woman Magazine, founder of Sovereign Magazine, author of many books, Dr Marina Nani is a social edification scientist coining a new industry, Social Edification. Passionately advocating to celebrate your human potential, she is well known for her trademark "Be Seen- Be Heard- Be You" running red carpet events and advanced courses like Blog Genius®, Book Genius®, Podcast Genius®, the cornerstones of her teaching. The constant practitioner of good news, she founded MAKE THE NEWS ( MTN) with the aim to diagnose and close the achievement gap globally. Founder of many publications, British Brands with global reach Marina believes that there is a genius ( Stardust) in each individual, regardless of past and present circumstances. "Not recognising your talent leaves society at loss. Sharing the good news makes a significant difference in your perception about yourself, your industry and your community."
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