Nighttime noise and night shifts linked to disrupted sleep and melatonin timing
A review links both exposures to altered sleep and melatonin timing; metabolic findings were reported in night-duty groups. Its simulations remain exploratory.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Nighttime noise and rotating night work were associated with altered melatonin timing and less continuous sleep. Studies in night-duty groups reported higher fasting blood sugar, lower insulin sensitivity and less favorable blood fat profiles. These observations informed a model of repeated exposure, but neither the review nor its simulations establish that the exposures cause disease.
Studies were too diverse for a pooled estimate. Quality assessments informed interpretation without excluding studies. This abstract-based summary cannot quantify the changes, and the authors explicitly caution against causal conclusions.
How evidence was combined
Because the studies differed too much to pool their results into a single estimate, researchers counted the direction of reported effects. That tally did not distinguish statistically significant findings from results that could reflect chance.
What the model adds
Simulated changes grew across repeated exposure cycles, echoing the review's reported patterns. These model outputs offer an exploratory representation of how biological changes might build over time; they do not establish disease progression in real people.
The original publication
Circadian Disruption from Urban Night-Time Noise and Endocrine Health Risks in Shift Workers.
Badea DO
Noise Health · 2025
- PubMed ID
- 41482893
- Record checked
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