![]() 2 For example, in 1 longitudinal cohort study of a nationally representative sample of US 10- to 15-year-olds, there was a strong dose-response relationship between the number of hours per day children viewed television and the prevalence of overweight, and as much as 60% of the 4-year incidence of overweight was estimated to be attributable to excess television viewing. Starting in the mid-1980s, 1 many epidemiologic studies have revealed associations between screen time and obesity. The relationship between screen media exposure and obesity has been widely studied. ![]() Future interdisciplinary research is needed to examine the effects of newer mobile and other digital media exposures on obesity to examine the effectiveness of additional interventions to mitigate the adverse effects of media exposures on obesity and possible moderators and mediators of intervention effects to effectively use digital media interventions to prevent and reduce obesity and to uncover the mechanisms underlying the causal relationships and interactions between obesity-related outcomes and media content, characteristics, and context. Some evidence also suggests promise for using interactive media to improve eating and physical activity behaviors to prevent or reduce obesity. ![]() Current evidence suggests that screen media exposure leads to obesity in children and adolescents through increased eating while viewing exposure to high-calorie, low-nutrient food and beverage marketing that influences children’s preferences, purchase requests, consumption habits and reduced sleep duration. Randomized controlled trials of reducing screen time in community settings have reduced weight gain in children, demonstrating a cause and effect relationship. Many observational studies find relationships between screen media exposure and increased risks of obesity. Obesity is one of the best-documented outcomes of screen media exposure. ![]()
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