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Int. J. Environ. Res. Public Health 2013, 10(9), 4086-4103; doi:10.3390/ijerph10094086
Article

Green Space and Stress: Evidence from Cortisol Measures in Deprived Urban Communities

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Received: 2 August 2013; in revised form: 14 August 2013 / Accepted: 15 August 2013 / Published: 2 September 2013
(This article belongs to the Special Issue Health Benefits of Nature)
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Abstract: Contact with green space in the environment has been associated with mental health benefits, but the mechanism underpinning this association is not clear. This study extends an earlier exploratory study showing that more green space in deprived urban neighbourhoods in Scotland is linked to lower levels of perceived stress and improved physiological stress as measured by diurnal patterns of cortisol secretion. Salivary cortisol concentrations were measured at 3, 6 and 9 h post awakening over two consecutive weekdays, together with measures of perceived stress. Participants (n = 106) were men and women not in work aged between 35–55 years, resident in socially disadvantaged districts from the same Scottish, UK, urban context as the earlier study. Results from linear regression analyses showed a significant and negative relationship between higher green space levels and stress levels, indicating living in areas with a higher percentage of green space is associated with lower stress, confirming the earlier study findings. This study further extends the findings by showing significant gender differences in stress patterns by levels of green space, with women in lower green space areas showing higher levels of stress. A significant interaction effect between gender and percentage green space on mean cortisol concentrations showed a positive effect of higher green space in relation to cortisol measures in women, but not in men. Higher levels of neighbourhood green space were associated with healthier mean cortisol levels in women whilst also attenuating higher cortisol levels in men. We conclude that higher levels of green space in residential neighbourhoods, for this deprived urban population of middle-aged men and women not in work, are linked with lower perceived stress and a steeper (healthier) diurnal cortisol decline. However, overall patterns and levels of cortisol secretion in men and women were differentially related to neighbourhood green space and warrant further investigation.
Keywords: green space; stress; diurnal; saliva; cortisol; neighbourhood; urban; deprivation; gender; mental health green space; stress; diurnal; saliva; cortisol; neighbourhood; urban; deprivation; gender; mental health
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Roe, J.J.; Thompson, C.W.; Aspinall, P.A.; Brewer, M.J.; Duff, E.I.; Miller, D.; Mitchell, R.; Clow, A. Green Space and Stress: Evidence from Cortisol Measures in Deprived Urban Communities. Int. J. Environ. Res. Public Health 2013, 10, 4086-4103.

AMA Style

Roe JJ, Thompson CW, Aspinall PA, Brewer MJ, Duff EI, Miller D, Mitchell R, Clow A. Green Space and Stress: Evidence from Cortisol Measures in Deprived Urban Communities. International Journal of Environmental Research and Public Health. 2013; 10(9):4086-4103.

Chicago/Turabian Style

Roe, Jenny J.; Thompson, Catharine W.; Aspinall, Peter A.; Brewer, Mark J.; Duff, Elizabeth I.; Miller, David; Mitchell, Richard; Clow, Angela. 2013. "Green Space and Stress: Evidence from Cortisol Measures in Deprived Urban Communities." Int. J. Environ. Res. Public Health 10, no. 9: 4086-4103.


Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert