How Much Screen Time Is Actually Okay?

I struggle with this question a lot. I believe I am somewhere in the middle on this, and I move around.

Some weeks I pull it back, usually after noticing how late a light was still on under a door. Other weeks it drifts, because there is plenty else going on. Mostly I adjust as I go and quietly wonder whether I have landed anywhere near right.

I meet parents who cut screens out entirely on weekdays. No exceptions, no negotiating. What I admire is not the discipline so much as the certainty — they seem to have settled a question I haven't.

Then I meet parents with almost no rules at all, who tell me calmly that their children manage it themselves and it has never really been an issue. They sound just as certain.

What I want is fairly ordinary: not to do my children any harm, and also not to shut them out of the thing their friendships now run through. Those two pull against each other, which is why the answer never feels obvious — and why both of those parents sound right while they are talking.

And then every so often something lands. A study in the news, a court case, a book everyone is discussing, a country banning social media for under-sixteens. The worry sharpens for a week and then settles back down — until the next piece arrives saying more or less the opposite, and I am no clearer than before.

If you have ever found yourself in the same place — wondering what is actually right, and no closer after the last article you read — this is a proper look at what the research says. Not one study, but where the evidence agrees, where it genuinely doesn't, and what it all means for an ordinary family in an ordinary week.

It covers that one question: how much is actually right. Making limits work once you have decided is a different problem, and a separate guide.

Plenty of us are carrying a number around. Two hours, usually. It sits at the back of the mind as the line between fine and not fine, and produces a low background guilt on the days it gets crossed — which, if we are honest, is most days.

Others have never had a figure at all, and quietly wonder whether they should.

Either way, it is worth knowing where that two-hour rule came from, because it explains why it never quite fits.

It came from television. The two-hour recommendation was built on research into children watching TV, in an era when a screen was a box in the corner that other people programmed and nobody carried in a pocket. Applying it to a device that is simultaneously a homework tool, a telephone, a photo album and the place your child's entire friendship group lives was always going to strain.

In January 2026 the American Academy of Pediatrics said so, and retired it. Its new policy statement dropped the hourly limits for children over six and argued that children's media use can't be understood through screen limits alone. One of its authors put it plainly: the recommendations historically made to parents had become almost impossible.

So if you've been failing to hit a target, it's worth knowing the target has been withdrawn.

It also explains why the two sets of parents I meet can both sound convincing. Each is answering one half of the tension and not the other — the harm on one side, the exclusion on the other. Most advice does the same thing.

So here is what the evidence says about both.

At population level, the measured effect is small. The most methodologically careful work in this area analysed data from around 355,000 adolescents and found digital technology use explained at most 0.4% of the variation in wellbeing. For scale, the same analysis found wearing glasses and eating potatoes showed comparably sized associations — while things like sleep and bullying were associated with wellbeing far more strongly than screen use was.

That finding is genuinely reassuring, and it's worth sitting with for a moment if screen time is a source of guilt in your house.

The relationship isn't a straight line. A study of 120,000 English adolescents found the link between screen use and wellbeing was curved rather than linear. Moderate use wasn't harmful and may have been mildly positive. And both very high use and very low use were associated with lower wellbeing.

That second half matters for your second worry. A child with no digital life at all is not automatically the child doing best. In a world where friendships are maintained on these platforms, being locked out has its own cost, and the data picks it up.

But the high end does show up. A 2026 analysis of just over 50,000 US children and adolescents found four or more hours a day associated with roughly 45% higher odds of anxiety and 61% higher odds of depression.

The interesting part is why. The researchers tested what carried the effect, and the strongest single pathway wasn't sleep at all — it was physical activity, accounting for around a third of the association. Irregular bedtimes came next. Sleep duration itself explained the least.

In other words: the harm at the high end appears to travel mainly through what the hours push out. Worth noting the data was collected in 2020–21, during the pandemic, and relies on parent reporting — so treat the exact figures as indicative rather than precise.

And what they're doing matters as much as how long. Passive consumption — scrolling, autoplay, fast-cut video — is consistently associated with worse outcomes than talking to close friends, making something, or gaming with a defined goal. Two hours on a video call with a friend and two hours of late-night short-form video are not the same activity. Any rule treating them identically will strike your child as arbitrary, and they'll be right.

Worth saying plainly: this is contested. Some serious researchers argue the small measured effects understate real harm. Other serious researchers argue the alarm has outrun the data considerably. Anyone telling you the science is settled in either direction is overselling it.

I went into this wanting a number. Something I could settle on, apply, and stop thinking about.

What I came out with was: it depends, and mostly on things that aren't the hours. Which is almost certainly closer to the truth, and also much harder to act on at half past eight on a school night when someone is still on a screen and I have to decide something.

So if you were hoping this would end with a figure, I'm sorry. It doesn't. But it does end with something more useful than the number I was carrying around before, and I'd rather have that than false confidence.

And if you've come across something I've missed — a study, a piece of research, something that genuinely changed how you think about this — I'd like to see it. Reply to any Still Close email and send it over. I read everything, and I'll keep this guide updated as better evidence turns up.

There isn't a number the evidence supports. What it supports is a different question.

Not how long, but what is this replacing.

Look at what the findings above have in common. The high-end risk travels through physical activity, bedtime regularity and sleep. Sleep is far more predictive of wellbeing than screen time itself. The harm, where it shows up, is displacement.

Which gives you something more useful than a timer. If sleep, movement, school and face-to-face friendship are intact, the hours matter much less than most parents fear. If those things are being eaten, the hours matter a great deal — and the hours were never really the problem.

That's a harder thing to check than a number on a screen. It's also the thing that's actually true.

It's worth adding one finding here, because it cuts against the instinct most of us have when we're worried: the evidence doesn't support the idea that stricter is automatically safer. Researchers have repeatedly raised the risk that heavily controlling approaches undercut adolescent autonomy, and there's reasonable evidence they work less well as children get older. So more restriction isn't a safe default. It's a trade-off like everything else here.

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If the hours matter mainly through what they displace, then the useful thing to guard is what's being displaced.

Two things, and the evidence points at movement first.

Physical activity. In the mediation analysis above, this was the single strongest pathway — a bigger factor than sleep in explaining the link between heavy screen use and poorer mental health. It's also the one that tends to disappear quietly, by attrition rather than decision: a club not renewed, a sport dropped after a bad season, a winter where nothing replaced it. Nobody announces it, which is why it's easy to miss.

Sleep — and bedtimes especially. Sleep is far more strongly associated with wellbeing than screen use is, and in that same analysis irregular bedtimes mattered considerably more than short sleep did. Adolescent body clocks are already shifting later for biological reasons, so this lands on a system under pressure.

Sleep is also where the one genuinely screen-shaped intervention lives: devices charging outside the bedroom overnight. It's specific, it's cheap, and it does more for mood, concentration and general reasonableness than almost anything else available to you. And buy an alarm clock — "I need it for my alarm" is the most common objection and the easiest to remove.

Movement is harder, because "do more sport" isn't a screen rule and can't be enforced like one. But if you're choosing where to put your attention, the evidence says put it there rather than on the timer.

Since I opened by admitting I hadn't decided anything, it seems fair to say what I've settled on.

For my nearly-twelve-year-old: the phone opens at six, once schoolwork is done, and closes again before bed. It comes out of her room overnight. Between six and eight, what she does with it is largely her business.

Physical activity looks after itself in our house — she's a competitive athlete, so it's not a gap I have to engineer. If it weren't, I'd put something active into the schedule the same way, because on the evidence above that's the part I'd least want to leave to chance.

I don't imagine this is right forever. A two-hour window suits a nearly-twelve-year-old and will look ridiculous at fifteen, and the whole thing will need loosening as she shows she can manage more. But it protects the two things the research actually points at, and it stops me relitigating the same decision every evening.

Let's see how it goes.

So what does yours look like?

I'd genuinely like to know — not out of politeness. Almost everything useful I've picked up on this subject has come from other parents rather than from journals, and I suspect there are shapes I haven't thought of. A window like mine, a weekday ban, a weekly allowance, nothing formal at all.

Tell me what you've settled on and how it's holding up. If you've changed it since, I'd like to hear that too — those are usually the interesting ones.

If you want to read the originals — all of these are free to access.

American Academy of Pediatrics, "Digital Ecosystems, Children, and Adolescents: Policy Statement" (Pediatrics, February 2026). The statement that replaced the hourly limits. The parent-facing summary is the readable version; the full statement is heavier going.

Orben & Przybylski, "The association between adolescent well-being and digital technology use" (Nature Human Behaviour, 2019). The 355,000-adolescent analysis, and the source of the glasses-and-potatoes comparison. This is the paper that reframed the debate.

Przybylski & Weinstein, "A Large-Scale Test of the Goldilocks Hypothesis" (Psychological Science, 2017; doi:10.1177/0956797616678438). The 120,000-adolescent study finding the relationship is curved rather than linear.

Dai & Wang, "Excessive screen time is associated with mental health problems in US children and adolescents: physical activity and sleep as parallel mediators" (Humanities and Social Sciences Communications, January 2026). The 50,231-child analysis, including the mediation results showing what actually carries the effect.

Where this guide describes the evidence as contested, that isn't a hedge — Jonathan Haidt's The Anxious Generation and the critical responses to it from researchers including Candice Odgers and Andrew Przybylski are a live and fairly sharp disagreement. Both sides are worth reading if you want the argument rather than the summary.