Screen Time Before Two: What the Guidance Actually Says
By the Growbaby team · Published Aug 9, 2026
Written against AAP, CDC and WHO guidance. How we write these guides
At a glance
- The CDC's current advice, on every milestone page: screen time is not recommended under 2 years.
- Video calling with family is the named exception, at any age.
- The reason is comprehension: under-2s cannot decode a screen unless an adult explains it.
- Background TV counts. It is separately linked to lower language and social-emotional skills.
- Co-viewing changes what a screen does, which is why an adult beside the screen matters more than a timer.
Screen time advice for babies is usually delivered as a number and a prohibition, which makes it easy to remember and easy to fail. The number is real and current: the CDC's milestone pages, revised in May 2026, tell parents to limit screen time to video calling with loved ones and say screen time is not recommended for children younger than two years.
The reason behind it is the part worth carrying, because it explains which situations actually matter and which are just guilt.
Why under two is treated differently
The AAP's explanation is about comprehension rather than about harm from light or attention. Children younger than two learn best from exploring the world around them and playing with other children and adults, and they have a hard time understanding what they are viewing on screens unless it is explained by an adult.
That is a specific claim and it has a specific consequence. A screen is not a weaker version of a good activity for a one-year-old; for much of what is on it, it is not an activity at all, because the content does not land. This is also why the same programme becomes genuinely useful a year or two later, when a child can follow it.
The CDC puts the same idea positively in its own tip for babies: babies learn by talking, playing and interacting with others. A screen does not leave a gap for a reply, and turn-taking is the mechanism language is built out of.
Why video calls are the exception
Video chatting is carved out at every age, and it fits the reasoning rather than contradicting it. A grandparent on a video call responds. They pause, they answer, they react to what your baby just did, which makes the screen a channel for an interaction rather than a substitute for one.
Practically, this means a call where the adult on the other end is talking to your child is a different thing from one where two adults talk over their head. The exception is about the interaction, not the app.
Background TV counts, and this is the underrated part
Most screen time advice assumes someone is watching. The evidence the AAP cites does not: screen time and regularly having a TV on in the background were both linked with lower language and social-emotional skills in young children.
This matters because background television is the version almost every household actually has. Nobody counts the news on while dinner is made, and it is exactly the situation where the adults in the room speak less and respond to the baby less, which is the plausible route from a switched-on television to a smaller vocabulary.
The practical version is unglamorous: switch it off when nobody is watching it, rather than budgeting minutes for a child who was not watching in the first place.
An adult beside the screen changes what it is
The AAP's advice to parents of infants is to limit screens and to co-view any content together with your child. That second half does the heavy lifting: the comprehension problem is solved by the adult explaining, which is what co-viewing means.
So a parent naming what is happening on screen, answering the questions, connecting it to something in the room, is running a different activity from the same screen playing alone. If a screen is going to be on for a young child, being next to it is the single change that matters most.
What this is not a reason to panic about
A twenty-minute call with a grandparent, a screen glanced at in a waiting room, a sibling's programme playing while your baby crawls past: none of this is the situation the guidance is aimed at, and treating every exposure as a breach is how a useful rule becomes an anxious one.
The pattern that the evidence describes is habitual: screens as routine care, and a television on for hours. What replaces the screen is the point rather than the abstinence itself, and at this age what replaces it is somebody talking to your child.
What did and did not change recently
The AAP published a new policy statement on digital media in January 2026, and it is worth knowing what it is and is not. It is a systems-level document about how digital ecosystems are designed, about commercialization and algorithms and how those shape prolonged use. It does not set new age thresholds for infants, and it does not withdraw the guidance above.
So if you have seen headlines suggesting the advice for babies has loosened, that reporting is about a different question from the one this page answers. The CDC's line, revised in May 2026, still reads the same: not recommended under two, video calls excepted.
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Frequently asked questions
The CDC's guidance is that screen time is not recommended under two years, with video calling with family the exception. The useful version of that rule is that a one-year-old cannot decode most screen content without an adult explaining it, so a screen on its own is not doing much for them.
Yes, at any age, and they are specifically carved out. The reason is that the person on the other end responds, which makes it an interaction rather than a broadcast. A call where two adults talk over your baby's head is closer to television.
Yes, and it is the part most people miss. Having a TV on in the background was linked with lower language and social-emotional skills in young children, most plausibly because the adults in the room talk and respond less while it is on.
For under-2s the limiting factor is comprehension rather than content quality, which is why an adult watching alongside and explaining changes the picture more than the label on the programme does.
Not for babies. The January 2026 policy statement is a systems-level document about how digital platforms are designed and monetised; it does not set new age thresholds for infants. The CDC's advice, revised in May 2026, still says not recommended under two.
The evidence describes habitual patterns, not single exposures. A call, a glance in a waiting room or a sibling's programme in the background for an afternoon is not what the guidance is aimed at, and the useful question is what your child's ordinary day looks like rather than what happened yesterday.
Sources
This guide is for general informational purposes only. Growbaby is not a medical device and does not provide medical advice, diagnosis or treatment. Every baby develops at their own pace; for any question or concern about your baby's health or development, always consult your pediatrician or another qualified healthcare provider.