Green space exposure on depression and anxiety outcomes: A meta-analysis

Liu, Ziquan; Cui, Huanhuan; Ma, Yuxuan; Gao, Ning; Li, Xinyu; Meng, Xiangyan; Lin, Huishu; Abudou, Halidan; Guo, Liqiong; Liu, Qisijing

doi:10.1016/j.envres.2023.116303

Cited by 31 publications

(5 citation statements)

References 35 publications

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“…145 A more recent meta-analysis examining anxiety and depression outcomes related to exposure to greenness did not find significant outcomes related to anxiety. 146 In addition to the quantitative findings, 8 studies in the systematic review included subjective evaluations. 144 Qualitative results indicate positive connections between greenness and fewer anxiety symptoms, suggesting that how one perceives one's environment may play an important role in promoting health.…”

Section: Psychological Effects Of Greenspacesmentioning

confidence: 99%

Greenspaces And Cardiovascular Health

Keith,

Hart,

Bhatnagar

2024

Circulation Research

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Accumulating evidence suggests that living in areas of high surrounding greenness or even brief exposures to areas of high greenery is conducive to cardiovascular health, which may be related to the environmental, social, psychological, and physiological benefits of greenspaces. Recent data from multiple cross-sectional, longitudinal, and cohort studies suggest that living in areas of high surrounding greenness is associated with a lower risk of all-cause and cardiovascular mortality. High levels of neighborhood greenery have been linked also to a decrease in the burden of cardiovascular disease risk factors as reflected by lower rates of hypertension, dyslipidemia, and diabetes. Those who live in greener environments report better mental health and more frequent social interactions, which can benefit cardiovascular health as well. In this narrative review, we discuss evidence linking greenspaces to cardiovascular health as well as the potential mechanisms underlying the beneficial effects of greenspaces, including the impact of vegetation on air, noise and light pollution, ambient temperature, physical activity, mental health, and biodiversity. We review literature on the beneficial effects of acute and chronic exposure to nature on cardiovascular disease risk factors, inflammation and immune function, and we highlight the potential cardiovascular effects of biogenic volatile organic compounds that are emitted by trees and shrubs. We identify current knowledge gaps in this area and underscore the need for additional population studies to understand more clearly and precisely the link between greenness and health. Such understanding is urgently needed to fully redeem the promise of greenspaces in preventing adverse environmental exposures, mitigating the effects of climate change, and creating healthier living environments.

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Section: Psychological Effects Of Greenspacesmentioning

confidence: 99%

Greenspaces And Cardiovascular Health

Keith,

Hart,

Bhatnagar

2024

Circulation Research

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“…The exact impact of green space exposure on improving mental health outcomes in adults, such as reducing depression(Z. Liu et al, 2023;Roberts, van Lissa, Hagedoorn, Kellar, & Helbich, 2019;Yimin Zhang et al, 2024) and anxiety symptoms,…”

Section: Mental Healthmentioning

confidence: 99%

Greenness, Blue Spaces and Human Health: An Updated Umbrella Review of Epidemiological Meta-analyses

Wang,

Feng,

Wang

2024

Preprint

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We systematically summarizes and evaluates the relationship between green and blue spaces and human health through an umbrella review of epidemiological meta- analyses up to the year 2024. Green spaces have been recognized for their ecological services, including air purification and biodiversity protection, which contribute to the enhancement of life quality and well-being. The review highlights significant advancements in research methodologies and the emergence of new evidence linking green spaces with reduced risks of various health issues, such as type 2 diabetes, obesity, cardiovascular diseases, and improved mental health.The study follows the PRISMA guidelines and includes meta-analyses from PubMed, Embase, and Cochrane databases, focusing on new evidence and methodological improvements. Inclusion criteria encompass studies on human populations, exposure to green and blue spaces, and health outcomes such as mortality, disease risk, and physiological indicators. Data extraction and quality assessment of evidence and methods are conducted using the GRADE system and AMSTAR 2 tool.The review finds that green space exposure is associated with reduced all-cause mortality, cardiovascular disease mortality, incidence of diabetes and metabolic syndrome, low birth weight, and mental health improvements. Blue spaces also show positive associations with health outcomes, including reduced obesity rates and improved psychological well-being. However, the evidence regarding green space exposure and specific health outcomes like cancer, asthma, and allergic rhinitis remains heterogeneous and unclear.The review underscores the need for future research to address methodological limitations, incorporate various green space indicators, and explore the complex mechanisms of human-environment interactions. It concludes by emphasizing the importance of green and blue spaces in urban planning and public health strategies to improve residents’ health and quality of life.

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“…Areas with high NDVI values typically indicate good environmental quality, improved air quality, and better human health. Liu et al (67) studied the relationship between NDVI and depression and showed that every 0.1 unit increase in NDVI would lead to a significant negative correlation of 7.0% depression. Therefore, NDVI can indicate the influence of residential green spaces on the mental well-being of inhabitants.…”

Section: Coverage Ratiomentioning

confidence: 99%

Residential greenness for mitigating impacts of extreme heat events on depression and supporting mental health

Yang,

Zhang,

Sheng

2023

Front. Public Health

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BackgroundResidential green spaces (RGS) are a crucial aspect of urban life, which provide residents with a positive living environment both for mental and physical well-being. However, extreme heat events caused by global warming and local urban heat island effects are threatening the public health of rapidly growing populations. This is especially true for mental health. Depression is a mental illness that can be impacted by extreme heat events, i.e., heatwaves.ObjectiveThis study aimed to investigate the potential for residential green spaces (RGS) to alleviate depression by reducing heat stress sensitivity during extreme heat events.MethodsWe conducted a literature review using scientometric analysis with CiteSpace to summarize existing research on the relationships between RGS, depression, and heatwaves. We proposed a conceptual framework for the relationship between RGS and depression, and that extreme heat events may be an important contributor to depression.ResultsOur review found that RGS can provide ecosystem services that lower ambient temperatures through evaporative cooling, radiation reflection, humidity regulation, and shading. Different types of RGS, i.e., small green spaces, green roofs, green walls, and street trees, have varying cooling capacities. The mechanisms by which RGS alleviate depression during heatwaves involve green space composition, exposure, physical activity, social contacts, and cohesion. And we proposed a conceptual framework for the relationship between RGS and depression, and that extreme heat events may be an important contributor to depression.ConclusionWe present a multidimensional RGS evaluation roadmap to inform green space design for reducing depression during heatwaves. Establishing RGS multidimensional evaluation can guide future research on leveraging RGS to build resilience against extreme heat and improve public mental health.

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Green space exposure on depression and anxiety outcomes: A meta-analysis

Cited by 31 publications

References 35 publications

Greenspaces And Cardiovascular Health

Greenspaces And Cardiovascular Health

Greenness, Blue Spaces and Human Health: An Updated Umbrella Review of Epidemiological Meta-analyses

Residential greenness for mitigating impacts of extreme heat events on depression and supporting mental health

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