Screens have become an integral part of children's everyday lives. From television and tablets to smartphones and social media, digital devices are increasingly shaping how children learn, communicate, play and interact with others.

But how does this growing exposure affect children's development?

Research suggests that the impact of screens is complex. It depends not only on how much time children spend in front of screens, but also on their age, the type of content they consume, the context in which screens are used and the quality of interaction with parents and other adults.

How early does screen exposure begin?

Children are being introduced to digital devices from a very young age. In France, for example, around half of children have their first contact with television by the age of 15 months, while smartphone ownership becomes almost universal during adolescence.

Screen time also increases significantly with age:

• Ages 1–6: approximately 2 hours per day
• Ages 7–12: approximately 3 hours and 32 minutes per day
• Ages 13–19: more than 5 hours and 10 minutes per day

This increasing exposure raises important questions about children's language development, attention, social relationships and mental health.

Screens and early childhood

The first years of life are particularly important for brain, language and social development.

Research discussed in the article highlights a relationship between high levels of early screen exposure and language development. One important explanation is that time spent passively watching a screen can replace opportunities for conversation, eye contact and meaningful interaction with parents and caregivers.

Young children also learn through direct interaction with the physical world. The so-called “video deficit” describes the difficulty that children under three can have when transferring information learned from a two-dimensional screen to real-world situations.

This is why touching, moving, manipulating objects, playing and interacting with other people remain essential parts of early development.

Screens and adolescence

During adolescence, digital technology takes on a different role. Social networks become spaces for communication, identity development and belonging.

However, this can also make young people particularly sensitive to social feedback. Likes, comments and online validation may become closely connected to how adolescents perceive themselves and their social position.

Intensive or problematic screen use has also been associated with anxiety, depression, insomnia and other difficulties. Cyberbullying presents an additional challenge because it can extend beyond school and into the young person's home and private life.

It's not only about children's screen time

An important aspect of the research is that children's own screen use is only part of the picture.

The concept of “technoference” describes how digital devices can interrupt everyday interactions between parents and children. A parent may be physically present but emotionally or attentively absorbed by their phone, reducing opportunities for meaningful interaction.

Screens can also affect sleep and expose children to constant sensory stimulation. At the same time, digital platforms are designed to capture and maintain attention through notifications, personalised content and immediate rewards.

What can parents and schools do?

There is no single solution to the challenges created by digital media.

Current recommendations emphasise age-appropriate limits, screen-free spaces and times, active parental involvement and the importance of real-world interaction.

Schools also have an important role to play. Beyond regulating mobile phone use, they can help young people develop digital literacy — understanding algorithms, critically evaluating information, protecting their privacy and using technologies such as generative AI responsibly.

The bigger picture

The relationship between screens and child development cannot be reduced to a simple question of “good” or “bad”.

For young children, excessive screen exposure can replace important opportunities for language, social interaction and physical exploration. For adolescents, digital technology can provide valuable spaces for communication and belonging, while also creating new vulnerabilities.

The challenge is therefore not simply to remove technology from children's lives, but to help children and young people develop healthy, conscious and critical relationships with it.

Digital literacy, meaningful human interaction and age-appropriate boundaries are key to ensuring that technology supports — rather than replaces — healthy development.

Read the full article here.