The relationship between greenspace and the mental wellbeing of adults: A systematic review

INTRODUCTION: The view that interacting with nature enhances mental wellbeing is commonplace, despite a dearth of evidence or even agreed definitions of 'nature'. The aim of this review was to systematically appraise the evidence for associations between greenspace and mental wellbeing, stratified by the different ways in which greenspace has been conceptualised in quantitative research. METHODS: We undertook a comprehensive database search and thorough screening of articles which included a measure of greenspace and validated mental wellbeing tool, to capture aspects of hedonic and/or eudaimonic wellbeing. Quality and risk of bias in research were assessed to create grades of evidence. We undertook detailed narrative synthesis of the 50 studies which met the review inclusion criteria, as methodological heterogeneity precluded meta-analysis. RESULTS: Results of a quality assessment and narrative synthesis suggest associations between different greenspace characteristics and mental wellbeing. We identified six ways in which greenspace was conceptualised and measured: (i) amount of local-area greenspace; (ii) greenspace type; (iii) visits to greenspace; (iv) views of greenspace; (v) greenspace accessibility; and (vi) self-reported connection to nature. There was adequate evidence for associations between the amount of local-area greenspace and life satisfaction (hedonic wellbeing), but not personal flourishing (eudaimonic wellbeing). Evidence for associations between mental wellbeing and visits to greenspace, accessibility, and types of greenspace was limited. There was inadequate evidence for associations with views of greenspace and connectedness to nature. Several studies reported variation in associations between greenspace and wellbeing by life course stage, gender, levels of physically activity or attitudes to nature. CONCLUSIONS: Greenspace has positive associations with mental wellbeing (particularly hedonic wellbeing), but the evidence is not currently sufficient or specific enough to guide planning decisions. Further studies are needed, based on dynamic measures of greenspace, reflecting access and uses of greenspace, and measures of both eudaimonic and hedonic mental wellbeing

Why women take fewer risk than men do. The mediating role of state anxiety

Gender studies have showed that women take fewer risks than men do. Previous research has also provided evidence for a link between negative affect (anxiety and depressive mood) and risk-taking. Little is known about the relationships among these factors. We examined the role of state anxiety in the relationship between gender and risk-taking. Fully 149 undergraduate students filled out the State-Trait Anxiety Inventory (STAI) and the Beck Depression Inventory-II (BDI) before playing the hot version of the Columbia Card Task (hot CCT), which is designed to measure emotionally based risk-taking behavior. Hierarchical regression analysis showed that gender and state anxiety were associated with risk-taking even when controlling for age, depressive mood, and trait anxiety. Moreover, results pointed out that gender is related to risk-taking through state anxiety. These results offer insights into gender research, as well as affective and decision science. Implications for future studies and applied interventions are discussed