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Background: The emergence of technology-based lifestyles has led to what may be called "virtual isolation," as people spend more and more time in front of screens and less and less time in the world. Though the psychological consequences of this isolation are broadly appreciated, the biological impact of such isolation, especially on the immune system, has not been well-studied.
Methods: This letter synthesizes interdisciplinary research in neuroendocrinology, psychoneuroimmunology, and microbiome science to explore the biological implications of digital isolation on immune system regulation.
Results: Long-term digital immersion has been linked to higher levels of the stress hormone cortisol, disrupted sleep and reduced oxytocin signaling - all which disarray both innate and adaptive immune function. The lack of social bonding in the real world limits the sharing of microbes and gut microbiome diversity, making immune homeostasis even worse. Digital addiction is also associated with raised inflammatory indicators and increased sus-ceptibility to infections and immune dysregulation.
Conclusions: The virtual bubble is nice, psychologically, but carries an insidious and deepening challenge to the integrity of the immune system. Tackling digital over exposure is essential to restore immunological balance, particularly in a post-pandemic society prone to stress-driven immunosuppression.
DOI: 10.7754/Clin.Lab.2025.250624
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