Nighttime environmental noise affects sleep quality. However, the effects of daytime occupational noise remain unclear.
A quasiexperiment involved 48 participants who had been employed for at least 6 months in two hospital cafeterias. The participants were randomly designated to be assessed on high- and low-noise workdays for 8 hours or low- and high-noise workdays, separated by a washout period of 14 days. Subsequently, pure tone audiometry, autonomic nervous system (ANS) function tests, serum cortisol tests, and polysomnography were conducted.
For the 40 participants in the study, the 8-hour time-weighted average of personal noise exposed on high- and low-noise workdays was 76.8 dBA, respectively. Participants with higher personal noise exposure during the day were found to have a lower percentage of slow wave sleep and lower sleep efficiency. In addition, after work, personal noise exposure was revealed to be related to increased serum cortisol levels, and sympathetic activity as measured by low frequency/high frequency and blood pressures by cold pressor test.
Daytime occupational noise exposure had sustained effects on nighttime sleep quality, specifically on slow wave sleep and sleep efficiency. These disturbances could be partially explained by post-shift elevated cortisol and ANS activity. The psychosocial and metabolic consequences of poorer sleep quality induced by occupational noise exposure warrant further investigation.
Find the full paper here.
Don't miss our latest HSE content, delivered to your inbox twice monthly. Sign up for the HSE Now newsletter. If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.
3 Dec 2019
- Cairo, Egypt
Enhance your understanding of process safety techniques by reserving a place at this 1-day training course
20 - 22 Jul 2020
- Austin, Texas, USA
Take the lead - speak at URTeC 2020
13 - 15 Jan 2020
- Dhahran, Saudi Arabia
Plan to participate at this unique event
3 - 4 Dec 2019
- Kuala Lumpur, Malaysia
Strategic Partnerships for a Sustainable Future
20 - 22 Oct 2020
- Perth, Australia
Abstract Submission deadline 13 January 2020
29 Jan 2020 22:30 GMT
- Live, then On Demand
19 - 20 Feb 2020
- Lafayette, Louisiana, USA
Covering issues related to the identification, prevention, and remediation of formation damage
HSE Now is a source for news and technical information affecting the health, safety, security, environment, and social responsibility discipline of the upstream oil and gas industry.
©2003-2019 Society of Petroleum Engineers, All Rights Reserved.