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Story summary
- University of Calgary researchers found high screen time harms children’s academic and mental health worldwide.
- The umbrella review examined data from over 2.8 million children in 64 countries.
- Higher screen use correlated with lower school grades and poorer language development.
- Screen time was linked to depression, anxiety, aggression, and ADHD symptoms.
- Effect sizes matched or exceeded socioeconomic status, though causation remains unproven.
