<![CDATA[Obesity is an increasing public health problem, including in children aged 13-15 years. The increasing prevalence of obesity is influenced by lifestyle changes, fast food consumption, and low physical activity due to the use of gadgets or smartphones and sedentary lifestyles. Childhood obesity can continue into adulthood and increase the risk of degenerative diseases in later life. The purpose of this study is specifically to determine the impact of physical activity on preventing obesity in children, while specifically aiming to provide an overview of the factors that cause obesity in children. The method used in this study uses the NLR (Narrative Literature Review) approach. Literature searches were conducted through several databases such as PubMed, Google Scholar, and ScienceDirect. The number of articles used as secondary data was 10 scientific articles in both national and international reputable scientific journals with a time limit of publishing articles in the last 10 years to keep looking for novelty. Keyword limitations used in the search include physical activity, obesity prevention, children aged 13-15 years, and adolescents. Based on the results of the study, it was found that physical activity has an impact on preventing childhood obesity and there are several factors that can reduce physical activity in children, namely individuals, families, the environment, facilities and infrastructure, and the influence of technology. Increasing physical activity should be a priority in childhood obesity prevention strategies. The conclusion of this study is that efforts to prevent childhood obesity need to involve a multidimensional approach. Not only maintaining the child's diet but including physical activity in the school environment, family, and community. Physical activity plays an important role in preventing obesity in children aged 13-15 years.]]>
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