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Simply Green is Simply not Enough – a Prelude to Mentally Healthy Cities

The fast-paced urbanization and disconnection of people from nature and the current series of lockdowns, contribute to an increasing burden of mental health disease in cities. Researchers have estimated that it is 39% more likely to develop depression when living in urbanized areas as compared to rural regions [source]. Other mental illnesses and neurodegenerative disorders such as anxiety, substance abuse, and dementia are also taking a large toll on the lives of urban dwellers.

The environmental determinants of this phenomenon are most obviously the noise, pollution, and abundance of distracting elements in the space, which keep attention at the mode of alertness. In addition to these factors, there are certain visual constraints and limited contact with nature, which contribute a substantial psychological burden to those living in urbanized spaces.

There are a lot of unanswered questions about the specific mechanisms of why this happens and, more importantly, how to design our cities to not only prevent mental illness but also improve our wellbeing. Several research teams around the world, including our scientists and landscape architects at NeuroLandscape, have been investigating the influence of exposure to different living environments on brain activity.

From multiple neuroscience experiments and cross-sectional analyses, it seems that the quantity of green cover in the city is not enough to trigger a beneficial mental health response. The proximity and accessibility of green spaces in relation to residency is a very important start point to mitigate the mental health decline but does not consistently determine better mental health outcomes. Like in many other aspects of life quality outperforms quantity.

In the era of the color green, urban planners, landscape architects and city managers, lend me your ears! —Do not green cities mindlessly.

There are certain types and components of urban green spaces which can reduce stress levels, restore our attention, regulate emotions, bring back positive motivation, and improve cognitive functioning by just passively experiencing them [our library on that topic]. They include open and panoramic landscape compositions, which allow far-away views into the landscape, but also enclosed pocket gardens inviting for calm relaxation and solitary contemplation. The visibility of natural asymmetry, undulating landforms and a diversified skyline also count towards that restorative effect. Among many other salutogenic landscape design strategies, seasonally changing, lush vegetation, and the presence of strong symbolic features, such as water, play an important role too.

In the endeavor to create liveable cities we have been through several stages, starting with the consideration of functionality and logistics, which was followed by improvements to sanitation, safety, equity, greening and sustainability, and finally led up to a focus on the mental health. The research to support this latest stage is ongoing. However, it is becoming clear that mentally healthy cities rely on the quality rather than quantity of green and natural elements.

With that in mind, nature is not to be visited (like visiting a gallery or animal park) but rather, a backdrop to our daily events and activities. For this vision to be feasible and effective, evidence-based landscape design is indispensable.

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Virtual Healthy Environments: Feasibility Study in Societies Affected by COVID-19 Summary of Results

Between 19 April and 12 May 2020, we ran an online survey titled "VHE for Well-Being".  Our goal was to better understand people's psychological needs, especially the relationship between Covid-19 confinement and mental health. We also aimed to test feasibility and demand for Virtual Healthy Environments (VHE) - our solution for health and well-being. To do this, we developed a questionnaire in five languages: English, Polish, Italian, Spanish and French and shared it through our website and social media (see the call for responses here). Please check out the summary of our work below! A special thank you to all participants who helped us discover these important trends!

Sample Characteristics

We collected 507 (318 female) responses from nearly every continent, but mainly from Europe. Most were from Poland, Spain and Italy, primarily representing two different socio-geographic zones: South-European (Mediterranean) and Central European regions. There were also contributions from France and the UK to help understand Western European trends. 

The respondents were between 19 and 90 years old, with most between 24 and 41 years old (n=294). There were 23 elderly respondents (>65 years old). The largest portion of our respondents was from high-density cities (33%) or large or medium-sized cities (25%). 12% reported living in the suburbs of big cities. This means the majority of respondents (70%) were from the urban population.

Summary of Main Findings

We ran our analysis based on two groups of psychological issues:

1. General mental health & well-being: comprised of the feelings of loneliness, helplessness, isolation, restlessness, sadness or depression, anxiety, worry and uncertainty about the future, higher irritability, and insomnia.

2. Productivity & cognitive performance: comprised of the feeling of boredom, problems with memory, and decreased motivation, productivity and concentration.

    • Men reported less general mental health issues than women, but stronger productivity/cognitive issues. It looks like women cope better with cognitive performance but are worse with general mental health issues than men. However, it is also possible that women were more willing to report these mental health issues as other research suggests.
    • A large majority (85%) of respondents missed meeting with friends and family the most during confinement (Figure 8). Travelling and contact with nature were the second most missed activities with 59% and 58% of people affected, respectively. Over half (53%) of respondents missed events and socialising, 36% missed going to work and/or school and 37% practising sport.

 

  • Percentage of respondents listing each activity in response to the question: "What did you miss the most in the period of confinement?", broken down by gender.

Did people miss nature?

    • In our survey, 58% of people reported missing contact with nature during the confinement period. Interestingly, this was an activity missed equally by men and women; people of all ages, across all income brackets, and levels of education.
    • People living in big cities missed contact with nature significantly more than others (strong link found between city size and missing nature during confinement).
    • Also, self-employed individuals and homemakers reported missing nature significantly more than others.
  • person experiencing the healing benefits of being in nature
    Lack of time in nature was a significant factor during Covid-19 confinement and mental health was negatively affected as a result
  • Other research shows that people are poor at explicitly seeing the positive health effect of nature: it is good for them, but they are not always aware of it. This makes it challenging to capture these effects in self-reported surveys.  This highlights the need for providing education about and evidence for the benefits of exposure to nature on mental health and well-being.

 

Can Virtual Healthy Environments be a Solution?

At NeuroLandscape we are developing a self-care tool based on Virtual Reality (VR) technology and exposure to nature (read more about the project). It is a solution for all those who cannot access healing natural environments as often as they would like to in order to keep their mind healthy. We addressed some survey questions to test the feasibility of our solution. This will be useful to support our research grant applications. Below are some interesting findings we hope will convince the grantors.

  • The vast majority (79%) of respondents declared being interested in VR technology. VR use at home and during potential future confinement periods was the preferred situation.
  • People who declared missing travelling were more likely to try Virtual Healthy Environments.
  • Women, in general, reported greater interest in using VR for contact with nature and self-care activities than men (32% vs. 17% for contact with nature), while men preferred VR for games and movies.
"For what activities would you use VR technology?" - Percentage of individuals who listed each activity, broken down by gender.

 

Other interesting findings

Overall, people reported a decline in mental health and wellbeing due to confinement. However, the effect was not incremental over time (more time confined did not correlate with worse mental health and wellbeing). Our respondents missed meeting friends and family the most, followed by travelling, socializing, and contact with nature. The least missed activity was shopping. Nature was missed more by urban than rural dwellers, but it was equally missed by men and women, people of all ages, across all income brackets, and levels of education. Interestingly,  people who missed going to work or school reported worsened productivity and cognitive performance as a consequence of confinement.

Conclusions

This survey has more clearly defined the relationship between Covid-19 confinement and mental health. Respondents were not only able to self-report the effects on their mood, but also shared the degree to which specific activities were missed. These findings were useful in evaluating the potential of the VHE app in helping to mitigate the negative effects of adverse stressful circumstances (such as the confinement period). They show it could be effective to provide a digital tool based on VR for improving mental health.

We would like to thank all participants of the survey!

Survey and Report Authors : Dr Agnieszka Olszewska-Guizzo, Dr Nicolas Escoffier, Dr Weronika Gąsior, Agnieszka Chadała. Full text of the report available through info@neurolandscape.org