HEALTH & WELLNESS
Information, Prevention & Quality of Life
By Dr. Laura Méndez
Health Analyst
The Sun Post News
September 27, 2026
Smartphones have become almost inseparable from adolescence.
They connect children with their parents, friends and schools. They provide entertainment, information, music, games and countless opportunities to communicate and learn.
But new research raises an important question for families: Could owning a smartphone at an early age be associated with eating-disorder symptoms later in adolescence?
A study published September 25 in JAMA Network Open, analyzing data from 8,957 U.S. adolescents, found that smartphone ownership at age 12 was associated with a greater likelihood of reporting certain eating-disorder symptoms by age 14.
The finding deserves attention.
But it also requires an essential clarification:
The study found an association. It did not prove that smartphones cause eating disorders.
Understanding that distinction is critical to interpreting the research without unnecessarily alarming parents or teenagers.
Nearly Seven in 10 Already Had a Smartphone
Researchers used information from the Adolescent Brain Cognitive Development Study, a major U.S. research project following thousands of children and adolescents over time.
Among the young people analyzed, 69.5% owned a smartphone at age 12.
Two years later, researchers examined several behaviors and thoughts associated with eating disorders.
These included binge eating, behaviors intended to compensate for eating or prevent weight gain, and placing excessive importance on body weight when determining self-worth.
After accounting for a variety of factors that could influence the results, researchers found that smartphone ownership at age 12 was associated with a greater likelihood of experiencing at least one eating-disorder symptom at age 14.
Associations were also observed with specific behaviors.
That matters because eating disorders can have serious physical and psychological consequences during a particularly sensitive period of development.
Hispanic Teens Were Well Represented
There is another important element for Central Florida families.
Approximately 23.6% of the adolescents included in the study were Hispanic.
That provides meaningful Latino representation within the research sample.
It does not, however, establish that smartphones affect Hispanic adolescents differently from other groups.
What it does show is that this research includes a population that reflects many families in our own communities.
In Central Florida, where smartphones and social media are deeply integrated into young people’s lives, conversations about technology, body image and mental health deserve a place at the family table.
Is the Phone Really the Problem?
Not necessarily.
A smartphone is a tool.
What may matter considerably is what happens inside the screen.
Social media can expose teenagers to carefully selected photographs, digitally altered bodies, beauty filters, influencers, weight-loss products, extreme exercise routines and messages presenting certain body types as ideal.
Adults may recognize that a photograph has been edited or that an influencer is showing only a carefully constructed version of reality.
For an 11-, 12- or 13-year-old, making that distinction can be more difficult.
Algorithms add another layer.
Digital platforms learn what captures a user’s attention.
A teenager who begins watching videos about dieting, weight loss or physical appearance may subsequently be shown more content on those subjects.
That does not mean the teenager will develop an eating disorder.
But it can potentially create a digital environment in which body comparison becomes constant.
The Concern Is Not New
The latest study does not exist in isolation.
U.S. public health authorities have previously examined how social media may affect children and adolescents.
The Department of Health and Human Services has highlighted survey findings showing that 46% of adolescents ages 13 to 17 said social media made them feel worse about their body image.
Scientific research has also associated certain patterns of social-media use with body dissatisfaction, social comparison and disordered eating behaviors.
The effects, however, are not identical for every teenager.
Social media can also help young people maintain friendships, find supportive communities, learn and express themselves creatively.
The evidence therefore does not support treating all technology or all social media as inherently harmful.
A more useful question for parents may be:
How is my child using it?
Chasing an Impossible Body
One of the profound changes created by the digital age is that physical comparison no longer ends when a teenager leaves school.
Previous generations faced appearance pressures from peers, magazines, television and advertising.
Today’s teenagers can carry those pressures in their pockets from the moment they wake up until they go to bed.
A young person can compare his or her body with hundreds of images in a single afternoon.
Many of those images may not even represent bodies as they actually appear offline.
Filters, lighting, makeup, posing, digital retouching and increasingly artificial-intelligence tools can alter skin, waistlines, muscles and body proportions.
When a teenager compares a real body with an artificially perfected image, the comparison itself may be impossible to win.
That environment can be particularly challenging during adolescence, when bodies are changing rapidly and social acceptance can feel extraordinarily important.
What Is an Eating Disorder?
An eating disorder is not simply a teenager deciding to lose a few pounds or trying to eat healthier.
Eating disorders are serious illnesses that can involve persistent disturbances in eating, intense concerns about weight or body shape, and behaviors capable of damaging physical and mental health.
They include anorexia nervosa, bulimia nervosa and binge-eating disorder, among other conditions.
They affect girls and women, but also boys and men.
There is also no single physical appearance that identifies someone with an eating disorder.
A young person may appear to have a typical body weight while experiencing a serious problem.
That is why changes in behavior can be as important as visible physical changes.
Warning Signs Parents Should Know
One isolated behavior does not necessarily indicate an eating disorder.
Persistent changes, however, deserve attention.
Parents should notice if a teenager suddenly begins avoiding family meals, eliminates entire food groups without medical reason, expresses intense fear of gaining weight or constantly talks about calories, dieting or body size.
Other warning signs can include eating large quantities of food secretly, hiding food, frequently going to the bathroom immediately after meals or exercising excessively and compulsively.
Some young people may repeatedly weigh themselves, constantly examine specific body parts in the mirror or obsessively compare themselves with people they follow online.
Significant weight changes, dizziness, weakness, fatigue, menstrual changes or social withdrawal can also warrant medical evaluation.
When Should a Child Get a Smartphone?
The new research does not establish a universal age at which smartphone ownership becomes safe.
Nor does it demonstrate that giving a 12-year-old a phone will cause an eating disorder.
Children differ significantly in maturity.
Families may want to consider why the child needs a smartphone, which applications will be available, how much access the child will have to social media and whether he or she understands the risks of the digital environment.
The conversation therefore should not stop at:
“Should I buy my child a phone?”
Parents might ask more useful questions:
Which apps are being used?
Who does my child follow?
What is the algorithm recommending?
How much time is spent online?
Is the phone present during family meals?
Does my child sleep with the phone beside the bed?
How does my child feel after spending time on social media?
Those answers may reveal more than simply knowing which phone a teenager owns.
Banning Everything May Not Be the Answer
Concerned parents may understandably feel tempted to remove smartphones or social media entirely.
In some circumstances, restrictions may be appropriate.
But treating technology exclusively as an enemy can also make it more difficult for teenagers to talk honestly about what they encounter online.
A more sustainable approach may combine age-appropriate supervision with open conversation.
Parents can become familiar with the apps their children use, establish phone-free periods — including meals and bedtime — and discuss filters, advertising and digitally manipulated images.
They can also teach teenagers to ask:
Is this image real?
Is this person trying to sell me something?
Who created this content?
Why is the algorithm showing it to me?
How do I feel after watching it?
That type of digital literacy can become a form of prevention.
Parents Teach by Example, Too
Not every part of this issue involves teenagers.
Adults live with smartphones as well.
When parents constantly check messages during dinner, repeatedly criticize their own bodies or frequently comment about who looks “fat” or “skinny,” children receive messages even when no lesson was intended.
Helping children develop a healthier relationship with food and body image also involves the language used at home.
Food can be discussed in terms of nutrition, energy, culture, enjoyment and family connection — rather than as a constant battle against calories.
Don’t Wait Until the Problem Becomes Obvious
Eating disorders are treatable.
Early identification matters because these illnesses can affect the heart, bones, digestive system, hormones, development and mental health.
Parents who notice persistent changes in a child’s eating habits, behavior or relationship with body image should speak with a pediatrician or other qualified healthcare professional.
Rapid weight loss, fainting, severe dehydration, extreme weakness or other significant physical symptoms may require more urgent medical attention.
Listening without judgment also matters.
Telling a struggling teenager to “just eat” or dismissing the concern as something that is “all in your head” can minimize a complicated health problem.
What We Know — and What We Don’t
The new research provides meaningful evidence because it followed thousands of adolescents over time.
The data show an association between smartphone ownership at age 12 and certain eating-disorder symptoms at age 14.
That is what the study found.
What it did not prove is that smartphones caused those symptoms.
Many factors could be involved, including preexisting mental-health conditions, family environment, school experiences, genetics, social pressures, the type of content consumed and individual differences.
Researchers also need to determine which specific aspects of smartphone use might best explain the association.
That uncertainty is part of the science and should be part of the public conversation.
Don’t Just Hand Over the Phone — Stay Involved
Smartphones are unlikely to disappear from childhood.
The challenge for families is not necessarily raising teenagers completely disconnected from technology.
It is helping them live in a digital world without allowing that world to determine their self-worth.
For Central Florida parents,
