Many parents hand over tablets or phones to keep their children busy. But when screen time ends, it often leads to tantrums, frustration, or resistance. This leaves parents wondering: what exactly is screen time doing to our children’s brains?
The Screen Time Debate
Tech giants like Steve Jobs and Bill Gates famously restricted screen access for their own kids, fueling concerns that too much screen exposure can harm child development. Over the years, screen time has been blamed for depression, behavioral issues, sleep problems, and even brain changes. Neuroscientist Baroness Susan Greenfield once compared screen time risks to the early warnings of climate change.
But newer studies argue the science isn’t so clear. The British Medical Journal even criticized alarmist claims, saying they lacked strong evidence.

What Science Really Says
Research led by psychology experts like Professor Pete Etchells suggests the link between screen use and mental health problems is weak. His book, Unlocked: The Real Science of Screen Time, highlights that much of the existing data is flawed or based on self-reports.
Similarly, a review by the American Psychological Association found that social media, video games, and smartphone use play only a small role in mental health concerns. Other factors, such as loneliness and lack of in-person connection, seem more significant.
Quality vs Quantity of Screen Time
Not all screen time is the same. Researchers point out the importance of context:
- Is the activity educational or social?
- Is the child alone or interacting with friends?
- Is it uplifting content or negative “doomscrolling?”
Large-scale brain studies of children aged 9-12 showed no evidence that screen use directly harms brain function or wellbeing. In fact, some research suggests games and social media can even boost mood and social connection.
The Real Risks
Experts agree that the real dangers lie in harmful online content, grooming, and unsafe communities. Strict bans, however, may backfire by making screens more appealing as “forbidden fruit”. On the other hand, researchers like Jean Twenge argue that early access is harmful, urging parents to delay smartphones until at least age 16.
Studies show reducing screen time can improve children’s mood and prosocial behavior, but results vary depending on the type of use.
No Clear Guidelines Yet
Parents face a lack of consistent advice. While the World Health Organization recommends no screen time for children under one and a maximum of one hour for under-fours, other medical groups avoid setting strict limits. This leaves families to navigate the issue on their own, often leading to guilt or judgement among parents.
The Future of Screen Time
As technology evolves with AI, virtual reality, and social platforms, children’s exposure will keep changing. The real question is not whether screens are good or bad, but how they are used. Until clearer science emerges, balance may be the key – encouraging outdoor play, social interaction, and healthy digital habits alongside technology use.