Social Media Isn't Good or Bad for Your Teen. It's Personal.

If you have ever lain awake wondering whether social media is hurting your kid, you are in good company. Some of the most respected researchers in the world have spent years arguing over the same question, and they still don't agree.

I have read a lot of that research, and I have come to believe the argument is asking the wrong question for parents. The researchers are mostly arguing about averages. You are not raising an average.

A Real Disagreement Between Serious People

One camp is led by psychologist Jean Twenge at San Diego State University and social psychologist Jonathan Haidt at New York University. In their view, smartphones and social media are a major cause of the climb in teen anxiety and depression that began in the early 2010s. Twenge's analysis, with Diomino and Rio, for the World Happiness Report 2026 drew on up to 270,096 students aged 15 and 16 in 47 countries. Worldwide, girls who used social media 5 or more hours a day were 49% more likely than light users to report low life satisfaction. The authors note the data are a snapshot and can't rule out that unhappy girls turn to their phones more.

The other camp includes Andrew Przybylski at the University of Oxford, Amy Orben at the University of Cambridge and Candice Odgers at the University of California, Irvine. Their reading is that the evidence is mostly correlational and the average effects are modest. In a widely debated analysis of 355,358 adolescents, Orben and Przybylski found that technology use explained at most 0.4% of the variation in teen well-being. Twenge and Haidt have pushed back hard, arguing that this kind of averaging hides real harm among heavy users, especially girls.

Both camps agree that teen distress has risen. They disagree about how much of it social media explains. I don't think parents need to pick a winner to act wisely, because a third line of research speaks more directly to the kitchen table.

One Small Average, Three Very Different Groups

Ine Beyens and her colleagues at the University of Amsterdam asked a different question. Instead of looking for one effect across all teens, they estimated a separate effect for each one. In a preregistered study, they followed 387 Dutch adolescents over three weeks, checking in with them many times as they used social media.

The results broke cleanly apart. About 45% showed no change in well-being from social media use. Roughly 28% only felt worse. About 26% only felt better. Put those three groups together and you get a small average effect that describes almost none of them.

Then the same team, with Pouwels as lead author, looked again. In a later study of 297 teens aged 13 to 16, measured twice six months apart, about half of the teens' well-being patterns had changed. A teen who seemed unaffected in one season might not be in the next. Some methodologists question how reliably you can pin down any one teen's effect from a few weeks of data, and that debate is fair. But the lesson for parents holds up either way: your child's response is personal, and it moves.

Age matters too. Orben, Przybylski and Sarah-Jayne Blakemore of Cambridge, with colleagues, followed 17,409 young people aged 10 to 21 in the UK. Higher social media use went with lower life satisfaction a year later mainly at certain ages: around 11 to 13 for girls, 14 to 15 for boys, and 19 for both. The link also ran the other way, with dropping life satisfaction predicting more use later. Jacqueline Nesi at Brown has made a similar case in her own work: the useful question is which teens are vulnerable, to what, and when.

Where a Family Rule Helps, and Where It Stops

None of this means house rules are pointless. Haidt makes a strong point that one family going it alone can leave a teen socially stranded, which is why shared norms, like phone-free schools, can help. A common baseline gives everyone something solid to stand on, and I am for it.

But a rule written for the average teenager will fit very few actual teenagers. One of your kids may need tighter limits. Another may be finding real friendship and support online that you would be wrong to cut off. The right balance between the family standard and the individual child is rarely an even split, and it changes as your kids grow.

This is the same tension I see in organizations every day. Leaders who manage only by policy end up managing a person who doesn't exist. Parents can fall into the same trap.

Becoming a Student of Your Own Teen

Watch the after, not just the during. How does your teen seem after thirty minutes online: lighter, flatter, more irritable, more connected? That tells you more than any screen-time report.

Invite them in as a fellow observer. Ask, "Which apps leave you feeling better, and which ones leave you feeling worse?" Teens often know, and saying it out loud helps them own the answer.

Check again next season. What was true in September may not be true in March.

And keep the focus on who they are becoming, which is the idea behind The Best Screen-Time Limit Is a Future Self. When a teen knows what they are building, they start setting some of the limits themselves. For the teen who keeps measuring themselves against everyone else's feed, Comparison Is Stealing Your Career was written for adults, but its point lands at any age.

A rule can protect a whole family. Only paying attention to one child at a time can tell you whether it fits the child in front of you.

Research cited

Twenge, J. M., Diomino, A., & Rio, A. (2026). Adolescent life satisfaction and social media use: Gender differences in an international dataset. World Happiness Report 2026.

Orben, A., & Przybylski, A. K. (2019). The association between adolescent well-being and digital technology use. Nature Human Behaviour.

Beyens, I., et al. (2024). Social media use and adolescents' well-being: Developing a typology of person-specific effect patterns. Communication Research.

Pouwels, J. L., et al. (2025). Changing or stable? The effects of adolescents' social media use on psychosocial functioning. Child Development.

Orben, A., et al. (2022). Windows of developmental sensitivity to social media. Nature Communications.

Want to explore these ideas further? Learn more about my work on leadership, identity and conviction at www.theglennllopis.com.