Transdisciplinarity as an Inference Technique to Achieve a Better Understanding in the Health and Environmental Sciences

The problems of the world are not categorised into disciplines. They are far more complex, a reality that the tradition of transdisciplinary research has recognised. When faced with questions in public health and sustainability, the traditional scientific paradigm often seems inadequate, and, at least in medicine, transdisciplinary research has not yet been fully appreciated or acknowledged. This lack of recognition may be partly caused by a lack of cooperation between disciplines and between science and society. In this paper, I discuss some of the challenges that scientists and policymakers face in public health and environment within a methodological context. I present transdisciplinarity as a modern research tool that should be applied in research in health and the environment and argue that these topics can be approached beyond the inherent obstacle of incommensurability between disciplines. Thus, a small step might be taken in this immense research arena

Healthy people with nature in mind

This is the final version of the article. Available from the publisher via the DOI in this record.BACKGROUND: The global disease burden resulting from climate change is likely to be substantial and will put further strain on public health systems that are already struggling to cope with demand. An up- stream solution, that of preventing climate change and associated adverse health effects, is a promising approach, which would create win-win-situations where both the environment and human health benefit. One such solution would be to apply methods of behaviour change to prompt pro-environmentalism, which in turn benefits health and wellbeing. DISCUSSION: Based on evidence from the behavioural sciences, we suggest that, like many social behaviours, pro- environmental behaviour can be automatically induced by internal or external stimuli. A potential trigger for such automatic pro-environmental behaviour would be natural environments themselves. Previous research has demonstrated that natural environments evoke specific psychological and physiological reactions, as demonstrated by self-reports, epidemiological studies, brain imaging techniques, and various biomarkers. This suggests that exposure to natural environments could have automatic behavioural effects, potentially in a pro-environmental direction, mediated by physiological reactions. Providing access and fostering exposure to natural environments could then serve as a public health tool, together with other measures, by mitigating climate change and achieving sustainable health in sustainable ecosystems. However, before such actions are implemented basic research is required to elucidate the mechanisms involved, and applied investigations are needed to explore real world impacts and effect magnitudes. As environmental research is still not sufficiently integrated within medical or public health studies there is an urgent need to promote interdisciplinary methods and investigations in this critical field. Health risks posed by anthropogenic climate change are large, unevenly distributed, and unpredictable. To ameliorate negative impacts, pro-environmental behaviours should be fostered. Potentially this could be achieved automatically through exposure to favourable natural environments, with an opportunity for cost-efficient nature-based solutions that provide benefits for both the environment and public health

Green qualities in the neighbourhood and mental health - results from a longitudinal cohort study in Southern Sweden

Background: Poor mental health is a major issue worldwide and causality is complex. For diseases with multifactorial background synergistic effects of person-and place-factors can potentially be preventive. Nature is suggested as one such positive place-factor. In this cohort study we tested the effect of defined green qualities (Serene, Space, Wild, Culture, Lush) in the environment at baseline on mental health at follow-up. We also studied interaction effects on mental health of those place factors and varied person factors (financial stress, living conditions, and physical activity). Methods: Data on person factors were extracted from a longitudinal (years 1999/2000 and 2005) population health survey (n = 24945). The participants were geocoded and linked to data on green qualities from landscape assessments, and stored in the Geographical Information System (GIS). Crude odds ratios (OR) and 95% confidence intervals (CI) were calculated, and multivariate logistic analyses were performed. Results: Mental health was not affected by access to the chosen green qualities, neither in terms of amount nor in terms of any specific quality. However, we found a reduced risk for poor mental health at follow-up among women, through a significant interaction effect between physical activity and access to the qualities Serene or Space. For men the tendencies were similar, though not significant. Regarding the other three green qualities, as well as amount of qualities, no statistically certain synergistic effects were found. Likewise, no significant synergies were detected between green qualities and the other person-factors. Only advanced exercise significantly reduced the risk for poor mental health among women, but not for men, compared to physical inactivity. Conclusions: The results do not directly support the hypothesis of a preventive mental health effect by access to the green qualities. However, the additive effect of serene nature to physical activity contributed to better mental health at follow-up. This tendency was equal for both sexes, but statistically significant only for women. Objective landscape assessments may be important in detangling geographic determinants of health. This study stresses the importance of considering interaction effects when dealing with disorders of multifactorial background

Benefits of urban parks

At Ifpra’s World Congress in Hong Kong, the decision was taken to set up a new Scientific Task Force (STF). One of the main activities of this Task Force is to provide state-of-the-art knowledge on different aspects of parks. A major challenge is of course to find scientific proof for the benefits provided by urban parks, benefits that we often take for granted. In order to make sure that parks are part of political agendas at different levels, sound evidence of park benefits has to be provided. This need can be met by a review of existing scientific literature (best external evidence), carried out in a systematic way. By applying a systematic method the usefulness of such a document will increase, since the findings will meet the standards for evidence-based decisions

Nature and public health

Nature’s potentially positive effect on wellbeing may serve as an important resource for population health. Based on theories mainly derived from environmental psychology this resource has been explored in varied scientific studies the last century. This has rendered a substantial amount of empirical evidence for different beneficial effects of natural environments on health. The aim of this thesis was to consider these effects from a public health perspective. The state of the art for nature as intervention was xplored by a systematic review designed in accordance with the Cochrane principles. Different landscape types’ effect on stress and mental health were studied by one cross-sectional survey study and one longitudinal epidemiological study. Finally physiological stress recovery reactions by a standardized nature setting were examined in an xperimental randomized betweengroup study in a virtual reality laboratory. The different methodological aspects contributed to a broad entrance to the subject. In combination with the broad subject as such this spawned reflections upon the scientific approach and the thesis aims to some extent to mirror these reflections from an interdisciplinary and transdisciplinary viewpoint. A very short and simplified conclusion of the thesis would be that a small evidence base of the efficiency of nature assisted therapy is in line with the findings of certain nature qualities as resources for recovery from stress and reducing the risk for mental health problems, and that this may partly be mediated by an active relaxation mechanism within the parasympathetic nerve system. The findings may have implications for the contemporary disease scenario and the expected rise in non-communicable diseases and mental disorders. Policies and actions for public health should consider populations’ living environments and promote access to nature