Excessive time online is now linked to higher stress levels and worse mood, according to a new study from the University of Duisburg-Essen. The research, published in PLOS One, surveyed 900 German adults in 2025, revealing that problematic internet usage—including pathological and risky patterns—leads to functional impairment and distress. This finding underscores the urgent need to address our digital habits for better mental health.
Key Findings: How Excessive Internet Use Affects Well-Being
The study followed participants over two weeks, tracking their daily mood, stress levels, and internet usage. Results showed that individuals with more severe problematic internet use experienced consistently worse mood and higher stress. They also spent longer hours online and neglected other important life activities, such as work, relationships, and hobbies.
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Interestingly, the research found that temptation—not stress or mood alone—was the primary driver for continued internet use. Feelings of pleasure and relief reinforced the urge to go online, creating a cycle that is hard to break. Co-author Andreas Oelker noted, “More than actual stress or mood alone, it is the momentary urge to go online that determines whether people engage in online activities.”
Understanding Problematic Internet Usage
Problematic internet usage includes both pathological and risky behaviors. Pathological use involves severe impairment, while risky use shows early warning signs. The study categorized participants based on frequency and impact, highlighting that even moderate overuse can lead to negative outcomes.
Comparison: Healthy vs. Problematic Internet Use
| Aspect | Healthy Internet Use | Problematic Internet Use |
|---|---|---|
| Daily time online | Less than 2 hours | More than 4 hours |
| Mood impact | Neutral or positive | Worse mood, increased stress |
| Activity neglect | Minimal | Significant neglect of work, social life |
| Control | Easy to stop | Difficulty resisting temptation |
Practical Tips to Reduce Excessive Time Online
If you find yourself struggling with excessive internet use, consider these actionable strategies:
- Set time limits using app blockers or built-in screen time tools.
- Identify triggers that lead to impulsive online sessions, such as boredom or stress.
- Replace online time with offline activities like exercise, reading, or socializing.
- Practice mindfulness to recognize and manage temptation moments.
- Seek support from friends, family, or professionals if needed.
Why This Study Matters for Your Health
This research adds to growing evidence that excessive internet use is a public health concern. With the average person spending over 6 hours online daily, the potential for negative mental health effects is significant. By understanding the role of temptation, we can develop better prevention strategies that focus on impulse control rather than just stress reduction.
Future Directions in Research and Treatment
The authors suggest that helping people recognize and manage moments of temptation may be more effective than focusing on stress or mood alone. This could lead to new therapeutic approaches, such as cognitive-behavioral interventions tailored to reduce online urge. As digital life continues to expand, such insights are crucial for maintaining psychological well-being.