Parents everywhere are trying to navigate screens with as much intention as possible,  and often with a fair amount of guilt. A wave of new research has added fuel to the conversation, including a large 2025 study tracking over 10,000 children with brain scans, which found that higher screen time in middle childhood was associated with subtle changes in the brain regions involved in attention and self-regulation. 1 The effects were real but small, and the researchers are clear that they’ve found an association, not proof of cause and effect. So, what does the fuller picture actually tell us? It’s Not Just One Study A longitudinal study from A*STAR in Singapore found that high screen use before age two was linked to premature brain-network specialisation, slower decision-making at eight, and higher anxiety at thirteen, but screen time at ages three and four didn’t show the same effects, suggesting infancy is a uniquely sensitive window.2 A Karolinska Institute study tracking over 8,000 children found that social media use specifically was associated with growing inattention over four years, while TV and video games were not.3 And a meta-analysis of over 81,000 children found that those with more than two hours of daily screen time were significantly more likely to show attention-related difficulties.4 Content Matters More Than the Clock A 2025 study of over 41,000 children in Shenzhen found that the type of content matters far more than the clock. Passive screen use (cartoons, educational videos, autoplay) was linked to increasing attention difficulties the more children watched. But interactive content that required children to respond, make choices and think showed no such link, even at higher levels of use.5 This is the most empowering finding in the research: a child building in Minecraft is doing something fundamentally different from a child watching autoplay. The question isn’t just how long, but what is the screen asking my child’s brain to do? What Should Parents Do? The research doesn’t support panic. Effect sizes are small at the individual level. But it does support thoughtfulness: Prioritise interactive over passive. Apps and games that require thinking carry less risk than scrolling and autoplay.5 Take social media seriously. Of all screen types, social media is the one most consistently linked to growing concentration difficulties over time, and that finding held up regardless of a child’s background or starting point.3 Protect off-screen experiences. Executive function is built when children wait their turn, tolerate boredom and navigate friendships. Screens become a problem when they replace these moments. Read together. The Singapore team found that parent-child reading at age three significantly buffered the brain-network effects of earlier screen exposure.6 It’s never too late to add connection. Hold boundaries kindly. Children’s developing brains aren’t equipped to self-regulate screen use. A boundary isn’t a punishment — it’s space for the slow work of growing up. Dalza is a care coordination platform for children with learning differences, helping families connect the dots between school, therapy and home. Learn more at dalza.com. References 1. Shou, Q., Yamashita, M., & Mizuno, Y. (2025). Translational Psychiatry, 15, 447. 2. Huang Pei et al. (2025). Neurobehavioural Links from Infant Screen Time to Anxiety. A*STAR, Singapore. 3. Nivins, S. et al. (2025). Pediatrics Open Science, 2(1), 1–10. 4. Liu, H. et al. (2023). Reviews on Environmental Health, 39(4), 643–650. 5. Wu, J-B. et al. (2025). PLoS ONE, 20(4), e0312654. 6. Screen time, brain network development and socio-emotional competence. Psychological Medicine (2024).