Scrolling and how you feel

Sunday evening. You open Instagram for a minute. Someone is on a boat in Mykonos. Someone got engaged. Someone's body looks nothing like yours. Two hours later you feel flat, a little anxious and somehow behind in life. You feel worse, yet you keep scrolling. Why does that happen?

A highlight reel versus your behind-the-scenes

Humans compare. It's how we've always worked out where we stand. The problem is what we compare ourselves with now. Feeds show other people's best moments, chosen, filtered and edited, and we hold them up against our ordinary Tuesdays. Algorithms also learn what grabs us, and strong emotions like envy, outrage and worry grab us very well.

The result is a strange loop. You go to your phone to feel better (bored, lonely, stressed), it often makes you feel a bit worse, and feeling worse makes you reach for it again.

There's also the quieter pressure of being constantly available. Messages are "seen," stories are watched, and replies are expected fast. Many people describe a background hum of worry: Did they like my post? Why haven't they answered? Was I left out of that photo? It rarely feels dramatic, but carried all day, every day, it becomes tiring. And it follows you everywhere, to the dinner table, the classroom, the office and your bed.

Notice, too, that comparison doesn't only happen with celebrities. Often it's with people you actually know: an old classmate's new job, a cousin's wedding, a friend's new body after the gym. Those comparisons sting more, because they feel closer to what your own life "should" look like.

What the research actually shows

The biggest recent summary, published in 2024, pulled together 182 studies with more than 1.1 million people. It found small but real links between social media use and depression and anxiety. Problematic use, the hard-to-control kind, also went together with more depression, anxiety and sleep problems and lower wellbeing.

Two honest caveats: the effects are small on average, and most studies can't tell which comes first. Does social media make people low, or do people who already feel low scroll more? Probably both, feeding each other.

What happens when people take a break?

This is where it gets interesting, because experiments can test cause and effect.

In a huge experiment around the 2020 US election, tens of thousands of volunteers deactivated Facebook or Instagram for six weeks. Those who stepped away reported small improvements in an overall measure of happiness, depression and anxiety. Looking more closely, the researchers found the Instagram benefit was concentrated among women under 25, while the Facebook benefit showed up mostly in people over 35. So this isn't only a "teen problem."

In a 2025 study of young adults aged 18–24, 295 people chose to cut back on social media for just one week. By the end of the week, on average:

Depressive symptoms were down about 25%, anxiety about 16% and insomnia about 15%. The people who started with more symptoms improved the most. Loneliness didn't change, which is a useful reminder that a break doesn't replace real connection. There was no control group, so treat this as encouraging rather than final.

Sleep: the quiet middleman

One of the most direct ways scrolling affects mood is through sleep. Late-night use pushes bedtime later, and the stimulation keeps your mind switched on. Researchers who tracked young people's phones noted that some phones were active almost all night, and that phone use at bedtime was linked to falling asleep later on school nights. Lose sleep for a few nights and almost everyone becomes more irritable, anxious and low. Often the phone doesn't hurt mood directly. It steals the sleep that protects it.

Girls report it more, and Greek girls stand out

Teenage girls consistently report more strain from social media than boys. In WHO's European survey, 13% of girls versus 9% of boys met the criteria for problematic use. In Greece the gap is wider: more than one in five 15-year-old girls reported problematic use, about double the rate of boys.

Ask teenagers themselves and the numbers jump. In the 2024 ESPAD survey, 47% of 15–16-year-olds rated their own social media use as risky on a short three-question scale (53% of girls, 42% of boys). That's a self-assessment, a much lower bar than the WHO's stricter measure, which is why the figures differ so much. But it tells you something important: about half of teenagers already feel it's too much. Nobody knows for sure why girls are hit harder. Appearance pressure and constant comparison are the leading suspects, and boys' numbers are now rising too.

The bottom line

Social media isn't poison, and plenty of people use it without trouble. But if you notice that you often feel worse after scrolling and keep scrolling anyway, that's worth listening to. That gap between how it makes you feel and what you keep doing is exactly what psychologists look for when a habit stops serving you.

If low mood, anxiety or sleep problems last for weeks, talk to a doctor or psychologist. These are common and very treatable.

Educational guidance, not diagnosis or medical care.