Sedentary Behavior and Obesity in Youth
Summary
Youth today spend a growing proportion of waking hours in low‐energy activities such as television viewing, computer use and smartphone engagement. This sedentary profile often coincides with unhealthy dietary practices, disrupted sleep patterns and diminished opportunities for physical activity. Over time, energy imbalance arising from prolonged sitting and calorific intake elevates body mass index and fosters adiposity during critical developmental windows. The burden of overweight and obesity among children and adolescents has reached alarming levels worldwide, with long‐term consequences for cardiometabolic health, psychosocial well‐being and academic attainment. Underlying mechanisms include reduced lipoprotein lipase activity in skeletal muscle, impaired insulin sensitivity and altered appetite regulation. Social and environmental drivers—urban design, parental habits, school policies and digital marketing—further entrench sedentary lifestyles. Evidence supports multifaceted interventions: regulating screen time, restructuring classroom environments to incorporate active breaks, promoting family‐based movement routines and improving access to nutritionally sound foods. Culturally tailored strategies delivered through community engagement and digital platforms show promise in curbing weight gain and instilling sustainable behaviour change. Integrating policy levers with school curricula and urban planning can shift population‐level activity patterns, thereby mitigating the trajectory from childhood sedentariness to adult obesity.
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Sedentary Behavior and Obesity in Youth publication trend
The graph below shows the total number of articles in sedentary behavior and obesity in youth across all publications each year (not limited to Nature Index journals).
Technical terms
Sedentary behaviour: Any waking activity characterised by low energy expenditure while sitting or reclining.
Screen time: Duration spent using devices with electronic displays, including television, computers and smartphones.
Body mass index (BMI): A ratio of weight to height squared used to classify underweight, healthy weight, overweight and obesity.
Longitudinal study: Research design in which the same individuals are followed and assessed over an extended period.
Odds ratio: A statistical measure expressing the likelihood of an outcome occurring in one group compared with another.
References
- Association between watching eating shows and unhealthy food consumption in Korean adolescents. Nutrition Journal (2024).
- Influence of eating while watching TV on food preference and overweight/obesity among adolescents in China: a longitudinal study. Frontiers in Public Health (2024).
- Screen time increases overweight and obesity risk among adolescents: a systematic review and dose-response meta-analysis. BMC Primary Care (2022).
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