Parents Beware: 6 Ways Screentime is Making Kids Moody, Crazy & Lazy

Image: 123rf , Angela Waye

Image: 123rf , Angela Waye

By Victoria L. Dunckley M.D |

The child or teen who is “revved up” and prone to rages or—alternatively—who is depressed and apathetic has become disturbingly commonplace.  Chronically irritable children are often in a state of abnormally high arousal, and may seem “wired and tired.”  That is, they’re agitated but exhausted.  Because chronically high arousal levels impact memory and the ability to relate, these kids are also likely to be struggling academically and socially.

At some point a child with these symptoms is likely to be given a mental health diagnosis, such as major depression, bipolar disorder, or ADHD, and offered corresponding treatments, including therapy and medication.  But often, particularly in today’s world, these treatments don’t work very well, and the downward spiral continues. What’s happening?

The problem is that both parents and clinicians are “barking up the wrong tree.” That is, they’re trying to treat what looks like a textbook case of “X” mental disorder, but failing to rule out and address the most common environmental cause of such symptoms: everyday use of electronics.  Time and again, I’ve realized that regardless of whether there exists any “true” underlying diagnoses, successfully treating a child with mood dysregulation in this day and age requires methodically eliminating all electronics use for several weeks –an “electronic fast” (link is external) – to allow the nervous system to “reset.” (link is external)

Related Article: 10 Secrets to Raising Less Stressed Kids

If done correctly, this intervention can produce deeper sleep, a brighter and more even mood, better focus and organization, and an increase in physical activity.  The ability to tolerate stress improves, so meltdowns diminish in both frequency and severity. The child begins to enjoy the things they used to, is more drawn to nature, and imaginary or creative play returns. In teens and young adults, an increase in self-directed behavior is observed – the exact opposite of apathy and hopelessness.

It’s a beautiful thing.

At the same time, the electronic fast reduces or eliminates the need for medication while rendering other treatments more effective. Improved sleep, more exercise, and more face-to-face contact with others compound the benefits…an upward spiral! After the fast, once the brain is reset, the parent can carefully determine how much if any electronics use the child can tolerate without symptoms returning.

Restricting electronics may not solve everything, but it’s often the missing link in treatment when kids are stuck.  

But why is the electronic fast intervention so effective? (link is external) Because it reverses much of the physiological dysfunction produced by daily screen-time.

Children’s brains are much more sensitive to electronics use than most of us realize. In fact, contrary to popular belief, it doesn’t take much electronic stimulation at all to throw a sensitive and still-developing brain off track. Also, many parents mistakenly believe that interactive screen-time—such as internet or social media use, texting, emailing, and gaming –isn’t harmful, especially when compared to passive screen-time like TV. But in fact, interactive screen-time is more likely to cause sleep, mood, and cognitive issues, because it’s more likely to cause hyperarousal and compulsive use.

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Here’s a look at six physiological mechanisms that explain electronics’ tendency to produce mood disturbance:

1. Screen-time disrupts sleep and desynchronizes the body clock. Because light from screen devices mimics daytime, it suppresses melatonin, a sleep signal released by darkness. Just minutes of screen stimulation can delay melatonin release by several hours and desynchronize the body clock. Once the body clock is disrupted, all sorts of other unhealthy reactions occur, such as hormone imbalance and brain inflammation. Plus, high arousal doesn’t permit deep sleep, and deep sleep is how we heal.

2. Screen-time desensitizes the brain’s reward system.  Many children are “hooked” on electronics, and in fact gaming releases so much dopamine — the “feel-good” chemical — that on a brain scan it looks the same as cocaine use! When reward pathways are overused, they become less sensitive, and more and more stimulation is needed to experience pleasure. Meanwhile dopamine is also critical for focus and motivation. Needless to say, even small changes in dopamine sensitivity can wreak havoc on how well a child feels and functions.

3. Screen-time produces “light-at-night.”  Light-at-night from electronics has been linked to depression and even suicide risk in numerous studies. In fact, animal studies show that exposure to screen-based light before or during sleep causes depression even when the animal isn’t looking at the screen. Sometimes parents feel scared to restrict electronics use in a child’s bedroom because they worry the child will go enter a state of total despair — but in fact removing light-at-night is protective.


About the Author

Victoria L. Dunckley M.D.Victoria L. Dunckley M.D, author of Reset Your Child’s Brain (link is external), is an award-winning integrative child psychiatrist who specializes in children with complex or treatment-resistant mental health conditions. By combining conventional and complementary methods with lifestyle interventions, she aims to optimize treatment while minimizing the need for psychotropic medication.  She consults regularly with schools, multi-disciplinary treatment teams, and the courts, and has a special focus on the physiological impact of screen-time on the developing nervous system. She is a speaker for parents’ groups and mental health trainings, and divides her clinical practice between the private and public sectors in Los Angeles county.

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