Digital device use in children and adolescents can no longer be managed only by asking "how many minutes of screen time?" Smartphones, tablets, computers, gaming systems and social platforms are now part of education, communication and play. The clinically useful approach is not to label every screen as harmful, but to interpret screen use together with sleep, movement, posture, school function, mental health and online safety.
This article translates the Scientific Board approach led by Prof. Dr. Bülent Bayraktar into family language: screen time is not a diagnosis by itself, but it can be a strong screening signal for growth, recovery, performance and psychosocial wellbeing.
This content is educational. It does not replace diagnosis, treatment or emergency evaluation. Persistent pain, clear sleep disruption, school impairment, self-harm concern or safety risk should be discussed with a pediatric clinician or relevant specialist.
1. The real issue in digital childhood
Childhood has become digital over the last two decades. Remote learning after the pandemic, social platforms and gaming ecosystems accelerated the change. Children now enter digital spaces early; this creates both opportunity and risk.
Educational content, communication, language learning and creativity can be useful. Risk begins when use becomes hard to regulate, disrupts sleep, replaces movement, narrows social function or threatens safety.
For families, the practical questions are often better than the phrase "screen addiction":
- Is the child sleeping enough and sleeping well?
- Is there enough movement and outdoor time?
- Is neck, back or headache emerging?
- Are school, sport and family relationships affected?
- Does social media, gaming or messaging create anxiety?
- Is there cyberbullying or online safety risk?
2. Musculoskeletal health and posture
When a child uses a phone or tablet with the head flexed forward, the load on the cervical spine can increase. Families often hear this pattern called "text neck": forward head posture, rounded shoulders, upper trapezius tension, weak deep neck flexors and reduced neck range of motion.
The key point in children and adolescents is that growth is still ongoing while prolonged sitting, low muscular endurance and repeated mechanical load may coexist. This does not mean permanent structural disease, but it can create a cycle of pain, poor posture and movement avoidance.
Family screening questions:
- Can the screen be brought closer to eye level?
- Is sitting interrupted every 30 minutes?
- Does the child report neck/back pain more than once a week?
- Does pain affect sport, sleep or school attention?
Weekly or daily pain, especially in a child athlete, should prompt consideration of pediatric, sports medicine or physiotherapy assessment.
Forward head posture rarely comes alone. Prolonged forward-flexed sitting can appear alongside increased thoracic kyphosis (rounding of the upper back), scapular dysfunction and altered spine-pelvis alignment. In a growing child the pattern itself is not "permanent damage," but when repeated mechanical load, long-standing muscle imbalance and a sedentary lifestyle combine, they can set the stage for chronic pain and structural posture problems later. The goal is not to alarm, but to notice posture early and rebalance it with movement.
A second, less-discussed risk is inactivity itself. Although sarcopenia is usually linked to old age, the concept of inactivity-related loss of muscle function (sarcopenia/dynapenia) is now discussed in children and adolescents too. Prolonged sitting can reduce muscle development and strength, weaken neuromuscular control and lower the mechanical loading bones need to grow. In other words, part of the screen problem is not "what is on the screen" but "the fact that movement has stopped." That is also where the fix lives: break up sitting, sprinkle short movement breaks through the day, and add muscle- and bone-strengthening play/activity on at least 3 days a week.
3. Sleep is the strongest evidence domain
One of the most consistent associations around screen use is sleep. Bedtime screens can delay sleep through light exposure, cognitive arousal, notifications and game/feed design. A phone or tablet in the bedroom also makes nighttime use more likely.
Sleep is not only rest. It supports growth, learning, immunity, emotional regulation and sport recovery. This is why Child Growth now screens not only total sleep duration, but also bedtime screen use and devices in the bedroom.
The first target is simple:
- Keep the final 60 minutes before sleep screen-free.
- Charge phones, tablets and TV-linked devices outside the child bedroom.
- Keep weekday and weekend bedtimes as consistent as possible.
4. Physical activity, motor development and performance
High screen time often means longer sitting and less outdoor time. This is not identical for every child; even a child who trains regularly may sit for long periods outside practice.
WHO emphasizes an average of 60 minutes per day of moderate-to-vigorous physical activity for children and adolescents. This is not only about weight. It also supports bone development, muscle strength, cardiometabolic health, motor skills and mood.
For child athletes, screen use may also affect:
- Later bedtime and poorer recovery
- Lower training quality
- Attention and reaction quality
- Disrupted meal rhythm
- Fatigue that may contribute to injury risk
Digital health therefore belongs inside performance conversations too.
One point matters especially for sport families: youth sport is first a tool for health, growth and development — not an early performance race. The FIMS/WHO and IOC youth athlete development approach stresses that early single-sport specialization should be managed carefully, that children should build broad motor skills, and that training load should match biological age, the growth spurt and psychosocial maturity. When screen-driven sleep loss and inactivity disturb that balance, both health and long-term athletic development suffer.
5. Mental health and social development
The relationship between screen time and mental health is not linear or one-directional. Some children find social support online; others struggle with comparison, sleep loss, cyberbullying or hard-to-stop gaming loops.
The "Digital Goldilocks" hypothesis argues that both very low and very high use may be problematic in some contexts, while moderate, purposeful use may be linked with better function for some young people. For families, the goal is not blind restriction, but managing content, timing, context and functional impact.
Red flags:
- The child feels fear or shame because of online interactions.
- Cyberbullying, threats, exclusion or harassment is suspected.
- School, sport or family relationships are clearly affected.
- Attention, impulsivity, anger or low mood is increasing.
- Self-harm or safety risk is mentioned.
When these signs appear, family conversation may not be enough. School guidance, child mental health support and pediatric review should not be delayed.
Attention, executive function and impulse control
Excessive — and especially fast-paced, constantly-notifying — screen use can be associated with attention, impulse control, working memory and executive function. Some children show ADHD-like features such as distractibility, task-switching and difficulty sustaining focus. Two points should be held together: this relationship is likely bidirectional — a child who already struggles with attention may turn to screens more, and heavy screen use may in turn make focus harder — and these features alone are not a diagnosis. If a drop in school performance, inability to focus on homework, or marked impulsivity persists, screen adjustment together with pediatric / child mental health assessment should be considered.
6. How this became product inside Child Growth
This review is not only a blog article. It is connected to four product surfaces:
- Digital health page: explains the screen, sleep, posture, movement and safety model to families.
- 15-question family screen: the nutrition screen now scores bedtime screen, devices in the bedroom, neck/back pain, breaks, outdoor activity and psychosocial flags.
- Child Growth Passport: the latest screen appears as a digital health panel in the PDF report.
- Ask a pediatrician: "Screen use and digital health" is now a topic in the anonymous Q&A workflow.
7. A 7-day starter plan for families
- Day 1: Note where, when and why devices are used at home.
- Day 2: Make the final 60 minutes before sleep screen-free.
- Day 3: Keep devices out of the child bedroom overnight.
- Day 4: Add a 2-3 minute movement break every 30 minutes.
- Day 5: Move outdoor play or sport toward a total of 60 minutes.
- Day 6: Discuss cyberbullying and social-media pressure without blame.
- Day 7: Recheck sleep, pain, attention and mood changes together.
Sources
- WHO: Physical activity
- WHO: Physical activity, sedentary behaviour and sleep under 5
- American Academy of Pediatrics: 5 Cs of Media Use
- ACSM: Physical activity guidelines for youth
- FIMS/WHO: Sports and Children consensus
- IOC consensus: youth athletic development
- Screen time and sleep outcomes meta-analysis
- Musculoskeletal effects of screen exposure review
- Digital Goldilocks hypothesis