Why you can't put it down

It's 11:47 pm. You pick up your phone "just to check one thing." The next time you look at the clock, it's 1:12. You don't remember deciding to keep going, and you can't really remember what you saw. Sound familiar? You're not weak, and you're not alone.

It isn't only you. It was designed this way.

Most apps you scroll have no natural ending. A book has chapters and a TV episode has credits. A feed just keeps going. Without a stopping point, your brain never gets the small signal that says "done, time to put it down."

The feed is also unpredictable. Most posts are boring, then suddenly one is hilarious, or beautiful, or about someone you care about. Psychologists have known for decades that rewards which arrive sometimes, at random, keep us going far more strongly than rewards that come every time. It's the same "maybe the next one" feeling that keeps people pulling a slot machine lever. Every swipe is a small bet that the next post will be worth it.

Then there are the likes. When researchers analysed more than one million posts from over 4,000 people, they found that posting followed the same pattern as reward learning: people posted more when they were getting more likes and timed their posts to collect as many as possible. Likes act as social rewards, and our brains are built to chase those.

On top of that come notifications. When researchers tracked the phones of about 200 young people aged 11–17 for a week, more than half were getting 237 or more notifications a day, and roughly a quarter of those arrived during school hours. Each buzz is an invitation to come back.

The feed learns you faster than you learn it

Every time you pause on a video, replay it, or even slow your thumb down, the app takes note. Within days it knows what makes you laugh, what makes you angry and what makes you insecure, and it serves you more of exactly that. That's why your feed can feel uncannily "you," and why two people sitting side by side can be living in completely different online worlds.

Think about how this plays out in real life. You open the app while waiting for a coffee. You open it during an ad break, then in the lift, then on the toilet, then at a red light. None of those moments feels like "using social media." Each one is only a few seconds. But add them up and they can easily fill a couple of hours a day, in pieces so small you never notice them leaving.

How many people struggle with it?

In the US, nearly half of teenagers now say they are online "almost constantly," up from 24% a decade ago. In Europe, the WHO's large school survey (almost 280,000 young people aged 11–15 in 44 countries) found that problematic social media use rose from 7% in 2018 to 11% in 2022. Girls reported it more than boys (13% vs 9%).

Adults are not immune. The same design that hooks a 14-year-old works on a 40-year-old in the queue at the supermarket, or on a parent who tells their kids to put the phone down while holding their own.

Is it really an "addiction"?

Officially, "social media addiction" is not a diagnosis. The WHO's manual includes gaming disorder but not social media, and scientists still debate the word. Researchers usually say problematic social media use instead. It describes a pattern that looks a lot like addiction:

You lose control over how long you stay. You keep thinking about it when you're not using it. You feel restless when you can't check. It pushes out other things you care about, and you keep going even when it causes problems.

Here's the most important point in recent research: the pattern matters more than the hours. A 2025 study in the journal JAMA followed 4,285 young people in the US from about age 10 into their mid-teens. Almost one in three (31.3%) showed an increasing addictive pattern of social media use over time. Those young people had roughly twice the risk of suicidal behaviour compared with those whose use stayed low and controlled. Total screen time, on its own, did not predict these problems. The study can't prove cause and effect, but it sends a clear message: two hours of relaxed use is not the same as two hours you couldn't stop.

So what does this mean for you?

None of this means you should throw your phone in the sea. Social media can connect you with friends, communities and ideas. The real question is simpler: who decides when you stop, you or the app? If the honest answer is "the app" more often than you'd like, that's not a moral failure. You're up against products built by very clever people to hold your attention. But it isn't helplessness either. Knowing how the hook works is what lets you take some control back, and noticing is the first step.

If your use feels out of control or is affecting your mood, a psychologist or counsellor can help. You don't have to hit "rock bottom" first. If you ever have thoughts of harming yourself, please talk to someone now: in Greece, call the 24-hour suicide helpline 1018, or 112 in an emergency.

Educational guidance, not diagnosis or medical care.