Screens Before Age 2: This Study Reveals an Unexpected Effect on Teen Anxiety
A large-scale study published in the journal eBioMedicine followed children for over ten years to analyze the effects of screens on their development. The findings reveal a direct link between screen exposure between ages 1 and 2, early brain maturation, and increased anxiety in adolescence. This sheds light on recent public health decisions while providing us with concrete keys to support our children in their daily lives.
A large-scale study published in the journal eBioMedicine followed children for over ten years to analyze the effects of screens on their development. The findings reveal a direct link between screen exposure between ages 1 and 2, early brain maturation, and increased anxiety in adolescence. This sheds light on recent public health decisions while providing us with concrete keys to support our children in their daily lives.
Early Childhood is a Critical Period for the Brain
Raising a child in the digital age often feels like a balancing act. To help us gain clarity, science offers new insights. A study conducted over more than a decade (00543-2/fulltext) and published in the journal eBioMedicine followed 168 children to analyze the effects of screens on their neural growth. The conclusions are unequivocal: exposure between ages 1 and 2 leaves a measurable imprint on brain organization, while no similar effects are observed after age 3. It is during this second year of life that the brain grows rapidly and is particularly vulnerable to streams of images.
Early Specialization Fosters Anxiety Later
By conducting several MRIs throughout childhood, researchers found that among the most exposed babies, the networks for vision and cognitive control specialize far too quickly. Far from being an advantage, this accelerated maturation prevents the brain from building the necessary connections for flexible thinking. By age 8, these children take longer to process information and make decisions. The documented path from the study shows that by age 13, this slowdown translates into more pronounced anxiety symptoms. These data scientifically validate the ban on screens before age 3 in French daycare centers, effective since July 2025.
Shared Reading Emerges as a True Shield
However, there’s no need to panic, as the study also reveals a solution accessible to all families. Scientists discovered that shared reading starting at age 3 significantly mitigates the negative effects of screens on the brain areas managing emotions. Opening a book together, telling a story aloud, and interacting with your child creates a space for exchange and emotional security that no tablet can replace.
Just a few minutes of reading each day can provide a wonderful protective tool for our baby while sharing a lovely moment of connection.