Narrative review: air pollution and obstructive sleep apnea risk, symptoms and severity
This narrative review summarizes epidemiological and mechanistic evidence that outdoor and indoor pollutants, plus climate and weather factors, may relate to obstructive sleep apnea risk, symptoms and severity; the authors call the evidence suggestive but heterogeneous. [1]
Automatic summary · not editorially reviewed
The key findings
The review says ambient and indoor pollutants, together with climate- and weather-related factors, may influence sleep-disordered breathing through multiple biological pathways. [1]
The authors searched PubMed and Web of Science from database inception through 30 June 2026 and summarize epidemiological and mechanistic evidence. [1]
The authors call the evidence suggestive but heterogeneous and recommend standardized exposure assessment, objective sleep measurements, longitudinal and intervention designs, and mechanistic biomarkers. [1]
The source at a glance
- Study type / format
- Narrative review of epidemiological and mechanistic evidence
- Population / context
- People with or at risk of obstructive sleep apnea, plus vulnerable populations, as discussed in the reviewed literature
- Summary based on
- Study abstract
- Original publication
- September 25, 2026
Review question on pollutants and sleep apnea
The review treats air pollution as an increasingly important environmental factor for respiratory health with emerging relevance for obstructive sleep apnea (OSA). It notes that obesity, aging, sex, craniofacial anatomy and neuromuscular factors remain established contributors to OSA. Alongside these, ambient and indoor pollutants and climate- and weather-related factors may influence sleep-disordered breathing through several biological pathways. The authors frame the paper as a summary of recent epidemiological and mechanistic evidence linking environmental exposures with OSA risk, symptoms and severity.
Supporting source [1]
Database search and proposed mechanisms
The authors searched PubMed and Web of Science from database inception through 30 June 2026. They summarize epidemiological evidence on environmental exposures and OSA risk, symptoms and severity, evidence from vulnerable populations, and biological mechanisms. The named mechanisms are upper-airway inflammation, oxidative stress, autonomic dysfunction, intermittent hypoxia and metabolic dysregulation. These are described as possible pathways, not as demonstrated causes of OSA in this review.
Supporting source [1]
Heterogeneous evidence and research recommendations
The authors judge current evidence as suggestive but heterogeneous. For future work they recommend standardized exposure assessment, objective sleep measurements, longitudinal and intervention designs, and mechanistic biomarkers. They suggest that recognizing environmental risk factors may support more comprehensive OSA prevention, risk stratification, counseling and public health strategies. These are proposals for research and public health, not validated tools or confirmed preventive measures.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. This is a narrative review, not a new study, so no sample size, follow-up or effect estimates are reported here. The authors themselves describe the evidence as suggestive and heterogeneous.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Thanh Tung N, Tran XN, Chang JH, Chuang HC. · europepmc.org · September 25, 2026