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Effects of environmental noise on sleep
Kenneth I Hume1, Mark Brink, Mathias Basner
1Manchester Metropolitan University, Manchester, M1 5GD, UK. k.i.hume@mmu.ac.uk
Noise & Health
|December 22, 2012
Summary
Environmental noise, even at low levels, causes sleep disturbances like arousals. Nocturnal noise exposure is linked to cardiovascular disease and stroke, especially in the elderly.
Area of Science:
- Environmental Health
- Sleep Science
- Public Health
Background:
- Recent research focuses on short-term noise effects (arousals, awakenings) and long-term health impacts of nocturnal noise.
- Epidemiological studies increasingly link night-time noise exposure to cardiovascular disease and stroke in the elderly.
- Noise policy has evolved with new protection concepts and rating methods based on limiting awakening reactions.
Purpose of the Study:
- To summarize recent research on environmental noise effects on sleep.
- To identify key future research directions in noise and sleep studies.
- To highlight the health implications of nocturnal noise exposure.
Main Methods:
- Review of findings from the past three years of research on environmental noise and sleep.
- Analysis of epidemiological studies on long-term health outcomes related to nocturnal noise.
- Examination of updated noise policy and guidelines.
Main Results:
- Noise events consistently induce arousals at low exposure levels, irrespective of source or environment.
- New evidence supports the association between night-time noise and cardiovascular disease/stroke in the elderly.
- Nocturnal noise exposure appears more critical for cardiovascular disease development than daytime exposure.
Conclusions:
- Environmental noise significantly impacts sleep quality and has potential long-term health consequences.
- Further research is needed to establish causal links between noise, disturbed sleep, and chronic diseases.
- Quantifying the impact of emerging noise sources is a critical future research goal.
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