No intentional screen time before age 2, says study: Doctor explains why first 1,001 days matter

A smartphone playing nursery rhymes may keep a baby occupied for a few minutes. But according to a landmark UK review, those few minutes could be replacing something far more valuable like conversation, play and human interaction during one of the most important phases of brain development.

The independent review, commissioned by The Centre for Young Lives as part of the 1,001 Critical Days campaign, recommends avoiding intentional, regular screen time for children under the age of two. Researchers say the earliest years of life are simply too important for passive digital entertainment to replace real-world experiences.

The review, which examined decades of international research on children from birth to five years of age, found consistent associations between excessive screen exposure and poorer developmental, behavioural and health outcomes. It also stressed that parents should not be blamed for using screens, noting that many families receive little guidance while juggling work, childcare and daily responsibilities.

More from Lifestyle

Why the first 1,001 days matter

From conception until a child's second birthday, the first 1,001 days, the brain develops faster than at any other stage of life.

"It is becoming very evident that the passive use of digital devices replaces active participation by kids during this critical period," says Dr. Santhosh Kumar, Senior Consultant & Lead – Paediatrician and Neonatologist, Motherhood Hospitals, Banashankari, Bengaluru.

"The children younger than two years old who are constantly exposed to screens make themselves vulnerable to great risks, which are reflected through the long-term negative effect on their health and decreased quality of life."

According to Dr. Kumar, an infant sitting in front of a television, tablet or smartphone misses countless opportunities to bond with caregivers, explore the world through touch and movement, and develop their senses.

"Consistent absence of interactions between the child and adults surrounding them corresponds to delays in cognitive development, language acquisition and problem-solving abilities," he explains.

What the review found

The review does not claim that screens directly cause developmental problems. Instead, it found strong evidence that higher levels of screen exposure are associated with poorer outcomes across several areas of early childhood.

Among the findings, children with greater screen exposure were more likely to experience delayed language and communication skills, reduced social interaction, poorer emotional regulation and behavioural difficulties. Excessive screen use was also linked to disrupted sleep, unhealthy eating habits, increased risk of obesity and poorer eye health, including short-sightedness.

Researchers say one of the biggest concerns is not simply what children are watching, but what they are missing while watching- face-to-face conversations, imaginative play, physical activity and responsive interactions with parents or caregivers.

Parents need support, not guilt

The report also highlights how common screen exposure has become in early childhood. It found that more than 70 per cent of children under two are already using digital devices in some form. Some babies were reported to spend several hours a day in front of screens, while one in ten regularly fell asleep while watching a screen.

Yet despite the growing use of devices, 85 per cent of parents surveyed said they had never received advice from healthcare professionals about screen use in young children. Rather than blaming parents, the researchers argue that families need better support, clearer guidance and environments that make interactive play easier than handing over a phone.

When too much screen time looks like something else

Dr. Kumar recalls treating a three-and-a-half-year-old girl, whose identity has been withheld, after she was referred with suspected autism spectrum disorder.

The child remained withdrawn, constantly babbled to herself and avoided interacting with others. Because both parents worked, she spent between four and five hours every day watching content on digital screens. After detailed assessments, autism was ruled out.

Instead, she was diagnosed with Expressive Language Delay, which Dr. Kumar attributed to excessive screen exposure.

"The child was watching cartoons and movies in different languages while conversations at home happened in another language, creating confusion during language development," he explains.

Rather than abruptly taking away the phone, the family was advised to gradually reduce screen time, encourage conversations and begin speech therapy exercises. Within four months, noticeable improvement was seen. By the time the child turned five, her language difficulties had resolved.

So, what should parents do?

The answer isn't to fear technology altogether. For children under two, experts recommend prioritising everyday interactions that naturally stimulate brain development like talking to babies, singing, reading aloud, making eye contact, playing on the floor and allowing children to explore their surroundings through touch and movement.

Dr. Kumar also advises parents not to suddenly remove screens if a child has already become dependent on them. Instead, screen use should be reduced gradually while replacing it with interactive activities and family engagement.

Technology is now part of modern family life, and the researchers acknowledge that completely avoiding screens can be difficult. But the review's message is clear- during the first two years of life, a baby's brain develops best through relationships, conversation and play.

For parents wondering whether a cartoon or smartphone can substitute for a few minutes of interaction, the science increasingly points in one direction- nothing on a screen can replace the human face looking back at a child.