Abstract
Large 2025 adolescent cohorts combining high-resolution MRI with epigenomic profiling now demonstrate that excessive social-media exposure correlates with early cortical thinning signals, neuroinflammatory promoter activation, and impaired attention-executive network maturation. These effects are linked to microglial cytokine priming and activity-dependent chromatin stress rather than structural neurodevelopmental disorders. Emerging data suggest modifiable risk windows through behavioral restriction modeling and inflammation-calming drug-neutral adjuncts without disrupting digital literacy frameworks.
Keywords: adolescent brain, cortical thinning, executive network maturation, microglia, MRI-epigenome, neuroinflammation, social-media exposure
To the Editor,
Recent multimodal evidence highlights that time-weighted social-media overuse correlates with cortical integrity loss signatures earlier than psychiatric symptom scores alone[1]. Previous neurodevelopmental modeling focused on cognition outcomes but under-indexed activity-dependent inflammatory chromatin stress. Data now confirm microglial IL-1β, IL-6, and TNF-α promoter priming parallels imaging-defined thinning in the dorsolateral prefrontal cortex (DLPFC), anterior cingulate cortex (ACC), and insula, suggesting inflammatory neural attrition subsets rather than irreversible neurodevelopmental disease[2]. Reference 3 independently demonstrates that social reward–heavy digital stimuli reduce activity-dependent BDNF promoter stability in adolescents, a change correlating with cognitive-network weakness prior to hippocampal or amygdalar volumetric shifts[3]. Reference 4 separately confirms that cumulative screen-induced sleep disruption amplifies paravascular inflammatory redox drift, compounding cortical solute-exchange injury not indexed by total screen hours alone[4].Translational 2025 cohorts emphasize that limiting micro-arousal burden and evening blue-light exposure reduces neuro-epigenetic inflammation flux, restoring insular-ACC resilience without influencing digital learning potential[5]. Parallel mechanistic evidence indicates omega-3 fatty acid sufficiency stabilizes neuronal lipid rafts, decreasing TLR-linked cortical cytokine pulsatility, offering nutrition-anchored neuroimmune balance rather than sedative epigenomic interruption[6]. Strikingly, 2025 AI-guided MRI-epigenome classifiers integrating glial cytokine flux, arousal injury indexes, and cortical metabolomics now predict attention-executive attrition earlier than volumetric MRI or psychometric scales alone[7].Collectively, inflammation-linked cortical thinning signals represent a modifiable adolescent neuromaturational risk window, where transcriptional injury dominates progression patterns rather than classical neurodevelopmental pathology.
This letter to the editor adheres to the Transparency in the Reporting of Artificial Intelligence in Research (TITAN) guideline[8].
Sincerely,
Footnotes
Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article.
Contributor Information
Syeda Tayyaba Batool, Email: tsyeda036@gmail.com.
Umair Ali, Email: umairaliuoswabi@gmail.com.
Raghabendra Kumar Mahato, Email: 102raghabendrakumarmahato@gmail.com.
Ethical approval
Not applicable – this article does not involve original research on human or animal subjects.
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Not applicable – no patient identifiable data are included.
Sources of funding
The authors received no financial support for the research, authorship, or publication of this article.
Author contributions
S.T.B.: contributed to the conception of the topic, literature search, extraction of relevant data, and drafting of the initial manuscripts. U.A.: contributed to literature review, critical revision of scientific content, and editing for intellectual accuracy and clarity. R.K.M.: contributed to manuscript supervision, refinement of clinical and methodological interpretation, final drafting, and approval of the version to be submitted. All authors meet the ICJME criteria for authorship, approve the final manuscript, and agree to be accountable for all aspects of the work.
Conflicts of interest disclosure
The authors declared no potential conflicts of interest with respect to the research, authorship, or publication of this article.
Guarantor
Raghabendra Kumar Mahato.
Peer and Provenance Statement
Not commissioned.
Data availability statement
Not applicable.
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References
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Associated Data
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Data Availability Statement
Not applicable.