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[HEALTH] · Canada, Brazil, Greece, United States · 13 sources

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Global studies link screen time to developmental and vision risks in children

Extensive research indicates that increased screen time is linked to various developmental and physical health issues in children and adolescents. A major review published in JAMA Pediatrics, involving nearly three million children across 64 countries, found associations between high screen exposure and poorer outcomes in learning, speech, and emotional regulation. Researchers noted that modern, interactive devices may have a stronger impact than the passive television viewing common two decades ago.

Beyond cognitive and emotional development, screen use is significantly impacting physical health. A study in the British Journal of Ophthalmology suggests that up to 40% of the world's children could develop myopia by 2050 due to excessive use of mobile devices and tablets. Additionally, research led by the University of Southern Denmark highlights a clear link between screen use and sleep deprivation, as blue light from screens can suppress melatonin production, particularly affecting children aged six to 15.

Experts emphasize that technology is not inherently harmful and can be a valuable tool for learning and connection. However, they advise parents to monitor how devices are used to ensure they do not displace essential activities such as sleep, physical exercise, and human interaction.

Entities

British Journal of Ophthalmology · JAMA Pediatrics · Lisbeth Lund · Sheri Madigan · University of Calgary

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