Scientists tracked kids for 8 years — the screen time result was unexpected

A long-term Finnish study found that higher screen time during childhood is associated with better cognitive processing in adolescence. Researchers suggest that the quality of screen use—focusing on active learning and problem-solving—is more important than the total time spent.
Why it matters
The findings challenge the conventional wisdom that all screen time is detrimental to child development, suggesting a more nuanced approach to digital media.
A Finnish study has found an unexpected association between screen use and cognitive performance. Children who accumulated more screen time as they grew up tended to show better cognitive processing during adolescence. One of the researchers cautions against viewing screen time as entirely harmful and says the goal should be to balance physical activity with screen use that encourages active thinking.
Low levels of physical activity among adolescents remain a significant public health concern. Sedentary behavior has been associated with poorer academic achievement, while physical activity is known to support brain function, particularly in adults. Much less is known, however, about how physical activity and sedentary behavior during childhood and adolescence relate to cognitive processing later in adolescence.
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