Biodiversity and human health: A scoping review and examples of underrepresented linkages.

Mounting evidence supports the connections between exposure to environmental typologies(such as green and blue spaces)and human health. However, the mechanistic links that connect biodiversity (the variety of life) and human health, and the extent of supporting evidence remain less clear. Here, we undertook a scoping review to map the links between biodiversity and human health and summarise the levels of associated evidence using an established weight of evidence framework. Distinct from other reviews, we provide additional context regarding the environment-microbiome-health axis, evaluate the environmental buffering pathway (e.g., biodiversity impacts on air pollution), and provide examples of three under- or minimally-represented linkages. The examples are (1) biodiversity and Indigenous Peoples' health, (2) biodiversity and urban social equity, and (3) biodiversity and COVID-19. We observed a moderate level of evidence to support the environmental microbiota-human health pathway and a moderate-high level of evidence to support broader nature pathways (e.g., greenspace) to various health outcomes, from stress reduction to enhanced wellbeing and improved social cohesion. However, studies of broader nature pathways did not typically include specific biodiversity metrics, indicating clear research gaps. Further research is required to understand the connections and causative pathways between biodiversity (e.g., using metrics such as taxonomy, diversity/richness, structure, and function) and health outcomes. There are well-established frameworks to assess the effects of broad classifications of nature on human health. These can assist future research in linking biodiversity metrics to human health outcomes. Our examples of underrepresented linkages highlight the roles of biodiversity and its loss on urban lived experiences, infectious diseases, and Indigenous Peoples' sovereignty and livelihoods. More research and awareness of these socioecological interconnections are needed.

Natural five-sense experience and positive and negative emotions: the mediating role of nature connectedness.

Nature experience is a relatively easy and beneficial measure for improving emotions. Individuals experience nature through proximal senses (tactile, gustatory, and olfactory) and distal senses (vision and audition). This study examined the relationships between diverse natural senses experience and individuals' positive and negative emotions, along with the mediating role of nature connectedness. We recruited 978 college students (Mage = 20.09 ± 1.09 years old) from Beijing, China. The results showed that tactile experience (e.g. touching trees and water) was negatively related to negative emotions, while gustatory experience (e.g. tasting fresh fruits) was positively correlated with positive emotions. Furthermore, nature connectedness mediated the relationship between other natural sensory experiences and positive and negative emotions, except for the insignificant mediation between olfactory experiences and negative emotions. Therefore, individuals should emphasize the role of the proximal senses (especially tactile and gustatory experiences) during nature experiences and increase nature connectedness to maintain positive emotions.

State of science: refitting the human to nature.

Environmental institutions are realising that the human-nature relationship is a tangible target for a sustainable future. Societal change of that relationship is a challenge involving modifications to both systems and human behaviours. We argue that as Human Factors and Ergonomics (HFE) focusses on relationships, interfaces and systems it is well placed to contribute. After introducing the state of HFE and nature connectedness science an analysis of areas of HFE and human-nature connectedness themes is used to consider current work and future opportunities. We conclude that despite decades-old calls to action, HFE is embedded in a dated paradigm and has had little positive contribution to the human-nature relationship. However, HFE is well placed to create sustainable communities, designed to create a new relationship with nature. To do this, HFE needs to recognise that it should move on from solely fitting the task to the human, to refitting the human to nature.Practitioner Summary: A more sustainable human-nature relationship can be achieved through applying HFE approaches. HFE expertise in human characteristics, systems, people and technology can be applied at differing scales with various social-economic and technical factors to address key themes in our failing relationship with nature.Abbreviations: HFE: Human Factors and Ergonomics; IPBES: Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services; STAMP: System-Theoretic Accident Model and Processes; CWA: Cognitive Work Analysis; NET-HARMS: NETworked Hazard Analysis and Risk Management System; NbS: Nature-based System.

'Lifts your spirits, lifts your mind': A co-produced mixed-methods exploration of the benefits of green and blue spaces for mental wellbeing.

INTRODUCTION: Mental health problems are a considerable public health issue and spending time in nature has been promoted as a way to access a range of psychological benefits leading to the development of nature-based interventions for people with severe and enduring mental health problems. Less, however, is understood about the potential benefits and efficacy of day-to-day routine access to outdoor green and blue spaces for mental health service users. METHODS: Using a mixed-methods design between April and October 2021, we explored the benefits and barriers to spending time outdoors with a purposive sample of mental health service users (N = 11) using qualitative interviews and an online general population survey (N = 1791). Qualitative evidence highlighted the restorative benefits of nature and identified a number of barriers associated with fears around personal safety, social anxiety, fatigue and lack of motivation. COVID-19 had also restricted access to green and blue spaces. Having social contact and support encouraged people to spend time outdoors. In the quantitative survey, self-report and standardised measures (the Patient Health Questionnaire and the Warwick-Edinburgh Wellbeing Scale) were used to assess past and current mental wellbeing. FINDINGS: Statistically significant differences were found between wellbeing and the use of green and blue spaces. Those with mental health problems spent time outdoors because they: felt guilty; wanted to reduce their anxiety; or rely on someone for encouragement. Those without mental health problems endorsed more positively framed reasons including relaxation, improving physical health or getting exercise. Barriers for people with mental health problems involved safety concerns, feeling anxious and having a poor self-image. These findings give insight into motivations for an outdoor activity to help inform the design of public mental health interventions. CONCLUSION: Further work is required to improve access and safety to promote the benefits of green and blue spaces for everyone. PATIENT OR PUBLIC CONTRIBUTION: The research team included expert experienced researchers with a mental health service provider (Praxis Care) and they were involved in the development of the research idea, funding application, design, data collection, analysis, writing up and dissemination activities.

A randomized controlled pilot study assessing feasibility and safety of a wilderness program for childhood, adolescent, and young adult cancer survivors: the WAYA study.

BACKGROUND: The majority of childhood, Adolescent and Young Adult (AYA) cancer survivors suffers from long-lasting health issues following cancer treatment. It is therefore critical to explore effective health promotion strategies to address their needs. Exposure to nature is a promising approach to support the needs of young cancer survivors. This study investigated whether it is feasible to conduct a randomized controlled trial (RCT) of a wilderness program for childhood and AYA cancer survivors. METHODS: Eligible participants were aged 16-39 years, had a cancer diagnosis, and met minimal criteria. Seventy-one individuals expressed interest and 59 were randomized to either a wilderness or a holiday program. The wilderness program involved an 8-day expedition including backpacking, sea kayaking, gorge climbing, camping, bush-craft skills, and mindfulness-practices. It was followed by a 4-day basecamp after 3 months. The comparison was an 8-day holiday program at a Spa-hotel followed by a 4-day holiday program at the same hotel after 3 months. Primary outcome was study feasibility and safety. RESULTS: Ultimately, 19 AYAs participated in the wilderness and 23 in the holiday program. All completed the study at one-year follow-up. Participants were mostly female (70%) and represented diverse cancers. Clinical characteristics were similar between study arms excepting greater age at cancer diagnosis in the wilderness program (age 19.1 vs. 12.5; p = 0.024). Program adherence and data completeness was high (> 90%) in both arms. Adverse Effects (AEs) in the wilderness vs. the holiday program were similar (Relative Risk: 1.0, 95% Confidence Interval 0.8-1.3). The most frequent AE was tiredness, all were mild to moderate in severity, and serious AEs were not reported. Nature connectedness significantly increased over time in the wilderness program participants, but not in the holiday program (p < 0.001). No differences were found between the two study arms regarding quality of life, self-esteem, or self-efficacy. CONCLUSION: It is feasible to conduct a RCT and a supervised wilderness adventure is equally safe for childhood and AYA cancer survivors as a holiday program. This pilot study lays the foundation for a larger RCT to investigate the effectiveness of wilderness programs on the health of young cancer survivors. TRIAL REGISTRATION DATE AND NUMBER: 18/02/2021, NCT04761042 (clinicaltrials.gov).

The primary drivers of private-sphere pro-environmental behaviour in five European countries during the Covid-19 pandemic.

Nowadays, when fighting climate change and other global environmental issues is of utmost urgency, the understanding of what drives pro-environmental behaviour has become a hot topic in both academic and practical circles. Some earlier studies unravelled the complexity of the underlying factors of pro-environmental conduct, yet more studies are needed to understand the socio-cultural premises of such behaviour in different countries. The main aim of this paper is to offer a comprehensive analysis of the importance of pro-environmental behaviour drivers across five countries in Europe, namely Greece, Poland, Portugal, Sweden, and the United Kingdom. The survey using computer-assisted web interviews (N = 2502) was implemented in July 2020, the first summer of the Covid-19 pandemic. Hierarchical linear models were employed to analyse individuals' behaviour, defined as self-perceived declaration of the willingness to contribute to environmental conservation. The results showed that attitudinal and value-related factors are more significant than demographics. Biospheric values and relationship to nature generally affect pro-environmental behaviour positively. Similarly, the experience of Covid-19 exerted a positive influence. In terms of country-level predictors, greenhouse gas emissions were found to have affected pro-environmental behaviour negatively, while the share of renewable energy sources influenced it positively. The cumulative country Covid-19-related mortality at the time of investigation did not have discernible impact. Based on the results it is suggested that, in order to foster PEB, a stronger emphasis on environmental education and attitudes towards nature should be employed.

Seeding hope: restoring nature to restore ourselves. Nature restoration as an essential mental health intervention.

This commentary offers stories of hope and regeneration in the face of the interconnected crises we face. Those of us in the health sector have the opportunity to undo the false separation that has arisen between the care we offer ourselves and the care we offer our natural spaces. Access to a healthy environment offers myriad health benefits and has been declared a human right. Beyond this, cultivating a sense of kinship with the natural world unlocks further mental health benefits and promotes a deep sense of meaning and vitality. Widespread restoration of nature, combined with the equitable reconnection of people to these restored environments, must become one of the most important aspects of public health in this century. This paper, written from a UK perspective, describes examples where people are already weaving these strands together and offers practical suggestions for healthcare professionals who want to know how this relates to their role and their everyday practice.

Harmony Between Humanity and Nature: Natural Vs. Synthetic Drug Preference in Chinese Atheists and Taoists.

A commonplace observation across many cultures is that humans show a strong preference for natural items on drug choice in the medical domain. Despite an emerging line of psychological research on individual differences in the naturalness-is-better bias, few studies have focused on the role of religious beliefs. According to the core idea of Taoism, people should free themselves from selfishness and desire and behave in concert with the alternating cycles of Nature. Based on the findings regarding the positive relationship between connectedness to nature and naturalness preference, we predict that Taoists, who emphasize harmony between humanity and nature, should show a stronger naturalness-is-better bias than atheists on drug choice due to their higher level of natural connectedness. The results showed that both Chinese atheists and Taoists selected a natural over synthetic drug even though the safety and efficacy of the medicines were described as identical. More importantly, the naturalness-is-better bias is more pronounced in Taoists than atheists. These data suggest that religious beliefs related to individuals' connectedness to nature may moderate the naturalness-is-better bias in health decisions.

The intricate diversity of human-nature relations: Evidence from Finland.

Supporting sustainability requires understanding human-nature relations, which we approached as social constructions that can be studied through nature-related discourses. We examined human-nature relations in Finland by combining approaches from environmental social sciences and arts-based research into a mixed-methods design. A public online survey (n = 726) and post-performance audience interviews (n = 71) portrayed nature positively. Respondents' ideas of nature ranged from natural scientific to philosophical; from dualistic to holistic; and from ecocentric to anthropocentric. A factor analysis revealed discourses focusing on wellbeing, conservation, ecoanxiety, pro-environmentalism, outdoor activity, and enjoying nature. Interviews added spiritual and over-generational aspects and revealed the importance of embodied experiences in nature relations. We identified dimensions that structure the relations, including human-nature positionality, engagement and contact with nature, and conception and thought. The emotional and experiential aspects, and nature-related practices, deserve further research. We demonstrate how a diversity of human-nature relations co-exists and co-evolves.

Exploring our relationship with nature: A modified-Delphi study protocol.

Background: A vital element to understanding the the health and wellbeing of both humans and the environment is human-nature interactions. The biophilia hypothesis is referred to when discussing these interactions. This hypothesis suggests that due to evolution, humans have an innate urge to seek out nature. The concept of nature connectedness was developed from this hypothesis and is rooted in the belief that human identity and nature can be intertwined. This research aims to explore the intricate details of how an individual builds this connection in a meaningful way. Methods: This is done using a modified Delphi method. A Delphi study in its typical form aims to gather the consensus of a group of experts in a specific area of interest. This modified Delphi aims to break down the barrier between the public and the experts by creating a second category of participants referred to as our 'expanded experts.' Expand experts are described as individuals with lived experience of being connected to nature in the everyday. This category comprises of artists, city planners, activists and many more. This allows for a much more inclusive and real-world exploration of experiences. The participants will first take part in a semi-structured interview process to investigate their experiences of connecting with nature. Following a hybrid thematic analysis with both deductive and indictive coding will be applied to the interviews. These themes will be shared with participants for them to weigh the importance of the theme to the construct to allow a deeper understanding of our interactions with nature. Results: The results of this project will contribute to and shape the development of a state-of-the-art nature-connectedness scale. Furthermore, understanding how nature connectedness fits into our modern world will allow for more appropriate nature-based interventions for urban residents and beyond.

This interview-based study looks at the interaction's individuals have with the nature around them and how those interactions help them to feel connected to the natural world. Interviews are taking place with fellow researchers, as well as individuals who work with nature in their everyday. Some examples are nature-based therapists and practitioners, poets, artists, farmers and city planners to name a few. By undertaking this research, it is hoped that we will better understand what nature resources urban residents require in their areas to improve their overall health and wellbeing as well as how individuals interact with the resources the already have access to. The end goal is to produce a method to measure these interactions for future research and practical use.

Nature Connectedness Reduces Internet Gaming Disorder: The Chain Mediating Role of Intolerance of Uncertainty and Desire Thinking.

While online gaming has become a choice for relaxation and entertainment in today's digital age, Internet Gaming Disorder (IGD) has also become a widely concerning mental disorder. Nature connectedness has been found to effectively reduce addiction-related risks and alleviate symptoms of addictive behaviors. It is a relatively lacking but very important factor influencing psychological recovery and regulation in the digital society. This study aims to explore the relationship between nature connectedness and IGD, and the mediating roles of intolerance of uncertainty and desire thinking. A total of 571 young people voluntarily participated in the questionnaire survey. The results showed that: (1) nature connectedness was negatively correlated with IGD; (2) intolerance of uncertainty plays a mediating role between nature connectedness and IGD; and (3) intolerance of uncertainty and desire thinking plays a chain mediating role between nature connectedness and IGD. Analysis of the research results indicates that nature connectedness can effectively reduce IGD and reveal its mechanism of action. The findings provide new insights for the study and intervention of IGD in the digital age.

Exploring the Facilitators of the Gerotranscendence Theory: Correlations among Sustainable Behaviors, Biophilic Design, and Nature Connectedness.

Aim: This study aims to shift views away from negative perceptions towards aging by exploring the following research question: How are the multiple levels of the gerotranscendence theory influenced by the sustainable behavior and attitude toward the biophilic design of older adults? Background: Improving perceptions of aging is vital for positively impacting both the biological and societal aspects of the global aging phenomenon. Methods: The study utilized a mixed-method design. Initially, 300 older Turkish adults completed self-reported measures including the Gerotranscendence Scale (GS), Pro-environmental Behavior (PB), Environmental Identity Scale (EID), Biophilic Design Importance Level (BDI), and Inclusion of Nature in the Self Scale (INS). Subsequently, the second phase involved diary logs from 30 participants who volunteered during the initial phase. Results: Results indicated that a higher importance level placed on biophilic design was linked to a greater inclusion of nature in the self. Moreover, a stronger interest in nature correlated positively with the gerotranscendence experience. Conclusions: The results bring significant attention to biophilic design, especially its relevance in supporting sustainable environmental behaviors and positive aging.

The influence mechanism of self-transcendence on green consumption: The chain-mediating effect of construction of meaning in life and connectedness.

A transition to a more sustainable society is occurring worldwide and necessitates a change in people's ways of consuming. Self-transcendence (ST) is recognized as a key predictor of green consumption. Thus, a multiple intermediary model was developed to clarify the psychological mechanisms underlying ST and its influence on consumption. The model was tested using data from a nationally representative sample of 428 Chinese participants. The results show that ST's overall positive effect on green consumption is realized via four indirect paths: (1) the simple mediating role of nature connectedness between ST and green consumption, (2) the simple mediating role of social connectedness between ST and green consumption; (3) the chain-mediating role of construction of meaning in life (CoMIL) and nature connectedness, and (4) the chain-mediating role of CoMIL and social connectedness. Among these paths, nature connectedness plays the most critical mediating role for the Chinese, accounting for the greatest proportion of the total indirect effect. The study advances understanding of the influence and path of ST on green consumption, and provides theoretical and practical support for guiding people toward sustainable lifestyles.

Promoting stress and anxiety recovery in older adults: assessing the therapeutic influence of biophilic green walls and outdoor view.

Previous research has already provided evidence regarding the favorable impact of green walls and outdoor views on stress reduction and anxiety alleviation. However, there has been limited exploration into the combined effects of green walls and outdoor views on older adults. In this study, a between-subjects experiment was conducted using virtual reality (VR) technology with 23 participants. Following exposure to stressors, each participant underwent four randomized sessions, each lasting 5 min, in various virtual reality (VR) environments, encompassing non-biophilic and biophilic environments (including green walls, outdoor views, and their combination). Throughout the process, we measured physiological indicators of stress responses, including heart rate, heart rate variability, skin conductance levels, and blood pressure, using biometric sensors. Psychological changes in participants, including anxiety levels, were evaluated through the State-Trait Anxiety Inventory, recovery scales, and self-reported emotional assessments. In conclusion, in comparison to non-biophilic environments, older adults consistently exhibited lower stress levels, experienced superior anxiety relief, and demonstrated improved recovery in nature connectedness environments, with a notably faster recovery rate. These findings suggest that the incorporation of nature connectedness principles into the indoor environments of public activity spaces within older adults care facilities can significantly contribute to stress reduction and anxiety alleviation among older adults. Furthermore, these effects appear to be contingent on the specific types of nature connectedness environments. These results can provide substantial evidence to support the design of indoor common activity spaces within older adults care facilities.

Personal dispositions explain differences in physical health benefits of nature exposure: the role of restorativeness and affect.

Introduction: Urbanization processes are constantly increasing, and most of the European population currently live in urban areas. Nevertheless, evidence is consistent in highlighting the positive association between nature exposure and human wellbeing, although individual differences might affect this association. Methods: The present study aimed to investigate the association among nature connectedness, conceptualized as Love and Care for Nature, place identity, and physical wellbeing, via restorativeness and positive and negative affect. A total of 312 visitors of an urban green area (i.e., Milan's Parco Nord) participated in the study. They completed an anonymous questionnaire. Results: Findings showed that nature connectedness and place identity positively affect physical wellbeing, via restorativeness and positive affect, but not through the negative ones. Discussion: Results highlight the importance of the joint role of exposure to nature and individual differences in promoting wellbeing. This study offers implications for interventions aimed at enhancing individuals' health through exposure to nature. Limitations of the study and future research developments are discussed.

Exploring positive psychology intervention and mindfulness-based intervention in nature: impact on well-being of school students in India.

Introduction: Enhancing the well-being of urban school students is a growing challenge. The online mode of teaching during and post-pandemic era has increased students' daily screen time. As they spend more time indoors, they tend to disconnect from nature even more, adversely impacting their well-being. This study aimed to design and execute two well-being interventions-a positive psychology intervention (PPI) and a mindfulness-based intervention (MBI) in natural settings for urban school students in India. Methods: One hundred eighty participants (aged 17-20) from a senior secondary school were randomly assigned to three groups: PPI, MBI, and a control group (CTR). Participants self-reported their levels of well-being, gratitude, inclusion of nature in self, sense of connectedness, resilience, awareness, perceived stress, and positive and negative emotions using a survey questionnaire at two times-pre- and post-interventions. Repeated-measures ANOVA was employed across time and groups, and post hoc analyses for group differences were carried out through the Bonferroni test. Results: Results indicate that both PPI and MBI interventions, when executed in natural settings, enhance student well-being, gratitude, inclusion of nature in self, sense of connectedness, resilience, awareness, positive emotions and decreased levels of perceived stress, and negative emotions. Discussion: The study provides valuable insights for school authorities, policymakers, and urban planners to include natural settings in school premises and offer well-being interventions for students to connect with nature consciously.

Effects of immersive virtual nature on nature connectedness: A systematic review and meta-analysis.

Objective: This study systematically summarizes the extant literature on the impacts of immersive virtual nature (IVN) on nature connectedness in the general population. Methods: Papers were considered eligible if peer-reviewed, in English language, comprising experimental or quasi-experimental trials, including at least one outcome relative to nature connectedness in the general population. Database search was conducted on Scopus, Web of Science, Google Scholar, Medline, and GreenFILE (22-28 November 2021). Risk of bias was established by the Cochrane RoB 2 tool. Data synthesis was conducted through meta-analysis according with the Cochrane Consumers and Communication Group guidelines. Results: Six eligible papers (9 studies; n = 730) were selected, in which IVN was compared to (i) non-immersive virtual nature, (ii) immersive virtual built environments, (iii) non-immersive virtual built environments, and (iv) actual nature. The risk of bias was predominantly "low" or of "some concerns." Meta-analyses showed a statistically significant overall effect for the first (g = 0.26; 95% CI = 0.06-0.45; I2 = 35%) and fourth group (g = -1.98; 95% CI = -3.21 to -0.75; I2 = 96%), the former in favor of IVN and the latter in favor of actual nature. Subgroup analyses were conducted for the first and second groups of studies to explore possible sources of heterogeneity. The small number of studies available limits the validity of the outcomes of the meta-analyses. Conclusion: The findings indicate that IVN may be an effective tool for the promotion of nature connectedness, although the evidence in this field is still limited and largely mixed. Recommendations for future research are discussed.

Coastal cultural ecosystem services and adolescents' subjective well-being.

Despite growing recognition of nature's impact on mental health, its specific effects on adolescents remain unclear. This gap hinders effective strategies for youth well-being in a world facing increasing environmental pressures. This study directly investigates the connections between coastal environments and subjective well-being in adolescents. We explore how interactions with coastal landscapes and associated cultural ecosystem services contribute to both personal and social dimensions of well-being in a sample of 202 adolescents (16 and 17 years old) from Sardinia, Italy. Our findings reveal a beneficial impact of coastal experiences, promoting positive affect, social integration, and physiological well-being. However, human pressures on these environments can lead to negative affect, while fostering a sense of social contribution. This research highlights the complex interplay between coastal environments, human impacts, and teenagers' well-being. Understanding these links empowers planners to craft coastal management strategies that balance adolescents' well-being with the long-term sustainability of coastal regions.

Flourishing or Frightening? Feelings about Natural and Built Green Spaces in Singapore.

The current study's aim was to better understand people's feelings towards different types of natural and built green space environments in the highly urbanized "garden city" of Singapore. We examined which types of green spaces elicited positive (eudemonic) or negative (apprehensive) affective responses. A total of 288 adult residents of Singapore completed a survey that asked them to report their affective states in response to images of 10 locally different environment types and to complete measures of childhood location, frequency of visiting natural/built environments, nature connectedness, and dispositional anxiety, as well as demographic items on age and gender. The 10 green space environment types were mapped onto an experiential state space representing feelings of apprehension and eudemonia in response to specific types of urban green spaces. In terms of a biophilic response, feelings of eudemonia were no different in natural green spaces compared to built green spaces. A higher frequency of experience in specific environments is associated with enhanced feelings of eudemonia in these environments. The findings indicate that people in Singapore can be apprehensive as much in natural green spaces as in built green spaces, and they can also find eudemonic experiences in built green spaces such as roof-top gardens or town parks.

A closer look at the relationships between aspects of connectedness and flourishing.

Everyone strives for personal happiness or well-being. Flourishing is a broader concept of well-being. To better understand which factors are associated to people's flourishing, we took a closer look at the relationships of flourishing with three aspects of connectedness: Connectedness with oneself (self-love), with others (pro-socialness), and with the surrounding nature (nature connectedness). Participants were 138 adults between 18 and 71 years (M = 23.21, SD = 7.90, 98 women, 40 men). Significant positive correlations were found between flourishing and self-love and between flourishing and pro-socialness. Furthermore, nature connectedness correlated positively with self-love and with pro-socialness. A regression analysis revealed that all predictors explained 57.5% of the variance of the criterion flourishing. Self-love and pro-socialness were significant predictors of flourishing while nature connectedness was not. One explanation for the large correlations between self-love and flourishing could be overlapping aspects in both questionnaires. The fact that pro-socialness is a stronger predictor than nature connectedness could be due to a more reciprocal reinforcement of pro-social behavior. If a person treats another well, s/he is more likely treated well by that person which could reflect flourishing. Such a direct reciprocal relationship does not exist with nature.