A Physician's Perspectives

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Introduction

In today's society, social networking services (SNS) play a significant role in information sharing, self-expression, and connecting with others. However, from a clinical standpoint, excessive or compulsive use of SNS—commonly referred to as "SNS addiction"—has become a significant concern for both mental and physical health. In particular, the impact on sleep quality and duration is increasingly alarming, especially among adolescents and young adults.


How SNS Addiction Impairs Sleep

1. Increased Screen Time and Difficulty Falling Asleep

Excessive SNS use often leads to prolonged screen exposure at night. The blue light emitted by smartphones and other devices suppresses melatonin, the hormone responsible for inducing sleep, thereby delaying the onset of sleep.
(Harvard Health Publishing, 2020)

2. Sustained Mental Arousal

The constant stream of stimuli—notifications, posts, comments—keeps the sympathetic nervous system activated, even late at night. This sustained arousal interferes with the body’s ability to enter a restful state, lowering overall sleep quality.
(Levenson et al., 2017)

3. Anxiety and FOMO (Fear of Missing Out)

Many users feel anxiety or inferiority when comparing themselves to others on social media. These feelings are associated with depressive symptoms, anxiety disorders, and sleep disturbances. FOMO, in particular, motivates users to continue checking SNS late into the night, making it harder to disconnect.
(Twenge et al., 2017)


Medical Risks of Chronic Sleep Deprivation

  • Immune dysfunction, metabolic disturbances, weight gain, and increased risk of hypertension and cardiovascular disease

  • Worsening of mental disorders, such as depression, anxiety, and ADHD

  • Impaired development in adolescents, particularly in terms of emotional regulation and executive functioning


    Physician Recommendations

  • Implement a “digital cutoff time”
    → Avoid all digital devices for at least one hour before bedtime.

  • Use app-based monitoring tools
    → Track and limit screen time using features like Screen Time or Digital Wellbeing.

  • Seek mental health support when needed
    → In severe cases of SNS addiction, referral to mental health professionals is recommended.

    • Parental and educational involvement
    → For minors, setting clear media-use rules and providing media literacy education is essential.


    Scientific References



    Conclusion

    From a physician’s perspectives, SNS overuse is not merely a lifestyle issue—it is a genuine health risk. Its adverse effects on sleep are especially noteworthy. Since sleep is essential for both mental and physical well-being, rethinking the way we engage with SNS is crucial. Proper education, digital hygiene, and medical intervention where necessary can help mitigate the risks and improve public health outcomes.

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