Teens, Screens, and Mental Health
Surveys show that today’s teens feel useless and joyless and there is an increase of teen suicide
San Diego State Professor of Psychology writes this about teens, screens and mental health:
Around 2012, something started going wrong in the lives of teens.
In just the five years between 2010 and 2015, the number of U.S.
In a new paper published in Clinical Psychological Science, my colleagues and I found that the increases in depression, suicide attempts and suicide appeared among teens from every background – more privileged and less privileged, across all races and ethnicities and in every region of the country. All told, our analysis found that the generation of teens I call “
What happened so that so many more teens, in such a short period of time, would feel depressed, attempt suicide and commit suicide? After scouring several large surveys of teens for clues, I found that all of the possibilities traced back to a major change in teens’ lives: the sudden ascendance of the smartphone.
All signs point to the screen
Because the years between 2010 to 2015 were a period of steady economic growth and falling unemployment, it’s unlikely that economic malaise was a factor. Income inequality was (and still is) an issue, but it didn’t suddenly appear in the early 2010s: This gap between the rich and poor had been widening for decades. We found that the time teens spent on homework barely budged between 2010 and 2015, effectively ruling out academic pressure as a cause.
However, according to the Pew Research Center, smartphone ownership crossed the 50 percent threshold in late 2012 – right when teen depression and suicide began to increase. By 2015, 73 percent of teens had access to a smartphone.
Not only did smartphone use and depression increase in tandem, but time spent online was linked to mental health issues across two different data sets. We found that teens who spent five or more hours a day online were 71 percent more likely than those who spent only one hour a day to have at least one suicide risk factor (depression, thinking about suicide, making a suicide plan or attempting suicide). Overall, suicide risk factors rose significantly after two or more hours a day of time online.
Of course, it’s possible that instead of time online causing depression, depression causes more time online. But three other studies show that is unlikely (at least, when viewed through social media use).
Two followed people over time, with both studies finding that spending more time on social media led to unhappiness, while unhappiness did not lead to more social media use. Athird
The argument that depression might cause people to spend more time online doesn’t also explain why depression increased so suddenly after 2012. Under that scenario, more teens became depressed for an unknown reason and then started buying smartphones, which doesn’t seem too logical.
What’s lost when we’re plugged
Even if online time doesn’t directly harm mental health, it could still adversely affect it in indirect ways, especially if time online crowds out time for other activities.
For example, while conducting research for my book on
Teens are also sleeping less, and teens who spend more time on their phones are more likely to not be getting enough sleep. Not sleeping enough is a major risk factor for depression, so if smartphones are causing less sleep, that alone could explain why depression and suicide increased so suddenly.
Depression and suicide have many causes: Genetic predisposition, family environments, bullying and trauma can all play a role. Some teens would experience mental health
But some vulnerable teens who would otherwise not have had mental health issues may have slipped into depression due to too much screen time, not enough face-to-face social interaction, inadequate sleep or a combination of all three.
It might be argued that it’s too soon to recommend less screen time, given that the research isn’t completely definitive. However, the downside to limiting screen time – say, to two hours a day or less – is minimal. In contrast, the downside to doing nothing – given the possible consequences of depression and suicide – seems, to me, quite high.
It’s not too early to think about limiting screen time; let’s hope it’s not too late.