Screens before age two affect sleep, language, and vision
Reem Qasim – Screens have become an integral part of daily life for many families. Tablets are sometimes used to calm children’s tantrums, while some parents allow cartoons to be watched during meals or while shopping. It is no longer rare to see a smartphone inside a stroller. However, the first years of life are a critical period for brain development, language acquisition, and the development of social interaction skills. A new systematic review conducted by the UK-based iADDICT group and published in the French journal Vie & Science has reignited the debate on this topic. Researchers believe that excessive screen exposure before the age of two is associated with an increased risk of sleep disorders, language delays, visual problems, and social difficulties. Although a causal relationship has not been proven, the study calls for greater vigilance.
Specialists refer to the period extending from pregnancy until the child reaches their second birthday as the “first 1,000 days,” a critical phase for brain formation and the child’s neurological, emotional, and cognitive development. According to researchers, more than 70% of infants and young children are exposed to screens during this period, which may lead to electronic devices such as smartphones, tablets, and televisions partially replacing direct interaction with parents, free play, and sensory exploration—elements essential for healthy brain development.
◄ Data from around the world to reach these conclusions, researchers conducted the largest available systematic review on the subject, published on June 27, 2026. It synthesizes findings from numerous peer-reviewed scientific studies on screen exposure during the first two years of life. The researchers also interviewed 174 British parents to better understand their practices and concerns. However, they emphasize that their work shows associations between screen exposure and certain disorders, but does not allow them to conclude that screens are the direct cause.
◾ The most common effects The analyses highlight several difficulties frequently observed in children with higher screen exposure. These include sleep disorders, language delays, hyperactivity, as well as concerns about eye health and an increased risk of childhood obesity. Researchers also note that screen time may reduce the time children spend with their parents, engaging in free play, and participating in social interactions—all of which are necessary for healthy child development. Since 2019, the World Health Organization has recommended avoiding screen use entirely before the age of two, except for video calls with close relatives. The American Academy of Pediatrics also supports this stance, although researchers believe that families often lack guidance amid the proliferation of screens.
◾ Simple habits make a difference Researchers remind us that small habits can significantly reduce screen exposure for young children. Prioritizing non-digital games, reading stories, going out daily, and avoiding screens during meals all promote interaction and learning. They also stress the importance of positive role modeling by adults; reducing phone use when with the child helps maintain the interactions necessary for developing language, social skills, and concentration.
◾ Frequently Asked Questions
● Why is it recommended to avoid screens before the age of two?
The brain grows rapidly during this period. Screens can reduce the time dedicated to interaction, play, and conversation, which are essential for development.
● Do screens cause language delays?
The study indicates an association between early screen exposure and language delays, but it does not prove a causal relationship.
● What does the World Health Organization recommend?
The World Health Organization recommends avoiding screens before the age of two, except for video calls with close relatives.
