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Circadian Disruption from Urban Night-Time Noise and Endocrine Health Risks in Shift Workers
Nighttime Urban Noise May Disturb Body Clocks and Hormone Health in Shift Workers
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Abstract
Nighttime noise and rotating night duties shifted melatonin timing and reduced sleep continuity.
- Exposure to nighttime noise is associated with altered circadian rhythms and disrupted sleep patterns.
- Groups exposed to nighttime work exhibited increased fasting glucose and decreased insulin sensitivity.
- Unfavorable lipid profiles were noted among individuals working rotating night shifts.
- Long-term night-duty workers may experience an increase in cardiometabolic load.
- A conceptual model suggests that repeated exposure to these conditions could lead to cumulative circadian and metabolic changes.
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Key numbers
25 studies
Increased risk
Total number of studies synthesised in the review.
55 dB(A)
Nighttime noise exposure level
Threshold level associated with increased health risks.