Archive · 31 Dec 2025
Screen Time Alters Young Children's Brains
A big study in Singapore found that very young kids who spend a lot of time looking at screens might have changes in their brains.
These changes could make it harder for them to make decisions when they are older and might make them feel more worried.
The researchers think this happens because screens give very strong sensory input to the brain.
They also found that screen time at ages three and four didn't have the same effects.
The study suggests that what happens in infancy can affect the brain and behavior for many years.
Parents can help by reading to their kids and spending more time with them in person.
This is important because many places are trying to limit how much time kids spend on digital devices.
Heavy screen time in infancy linked to accelerated brain network maturation in vision and cognitive control areas.
Children with altered brain networks showed slower decision-making at age 8.5 and higher anxiety symptoms at age 13.
Screen time at ages three and four did not show the same effects on brain development.
Researchers suggest intense sensory stimulation from screens may cause these changes.
Parents can counteract some brain changes by reading to children frequently and engaging more in person.
- Who
- Researchers from the Agency for Science, Technology and Research (A*Star) and the National University of Singapore
- What
- A study on the effects of screen time on young children's brain development
- When
- The study tracked children for more than a decade, with brain scans at three time points
- Where
- Singapore
- Why
- To understand the long-term effects of screen exposure on brain development and behavior
- Study Conducted By
- Agency for Science, Technology and Research and National University of Singapore
- Journal Published In
- The Lancet's eBioMedicine
- Number of Children Tracked
- 168
- Duration of Study
- More than a decade
- Age of Children at Start
- Under 2 years
- Key Finding
- Accelerated maturation of brain networks linked to vision and cognitive control
- Potential Outcomes
- Slower decision-making and higher anxiety in adolescence