New Studies Link Early Screen Exposure to Long-Term Learning and Memory Deficits in Children
Recent research highlights significant cognitive risks associated with early and prolonged screen exposure in young children. A longitudinal study conducted by researchers from Inserm in France and the National University of Singapore (NUS) tracked 502 children from birth to age ten and a half as part of the GUSTO study. The study found that extensive screen time at age one and around school entry age correlated with poorer academic performance and weaker working memory later in childhood. The strongest effects were observed in children exposed to screens extensively at age one, a critical period when the developing brain is especially vulnerable to replacing human and learning interactions with screen time.
Interestingly, no significant negative effects were found for screen exposure at ages two and three, but the association between screen time and lower academic achievement reemerged at age six, coinciding with formal schooling. Parallel to this, a comprehensive review by the UK-based iADDICT research group, involving four leading universities, concluded that intentional and regular screen exposure should be avoided for children under two years old. Their findings linked early screen use to sleep difficulties, overstimulation, delayed language development, potential eye health issues, reduced parent-child interaction, and increased risk of childhood obesity. However, they noted these associations do not prove direct causation.
Experts emphasize that responsibility extends beyond parents to include clearer guidelines from health authorities and technology companies. They recommend minimizing screen exposure in early childhood, prioritizing human interaction, free play, and physical activity, and caution against unverified "baby-friendly" digital content. While not advocating a total ban, limited and supervised screen use, such as video calls with family or guided educational activities, is considered acceptable. The overarching message from these studies is that lower screen exposure in early childhood enhances the likelihood of optimal cognitive and academic development later in life.
