Healthier cities will require a big dose of nature

If current global trends are correct, by 2025 approximately 41 million people will die from noncommunicable diseases (NCDs), which include cancer, heart disease, diabetes, chronic respiratory diseases and serious mental illnesses, which account for approximately 74% of all deaths worldwide. Despite major medical advances in recent decades, the number of deaths from NCDs continues to rise.

Urbanization is one of the main drivers of the increase in NCDs: Research clearly shows that people who live in urban areas without access to green spaces have a higher incidence of NCDs. Knowing that by 2050, two out of three people are likely to live in cities, these trends are extremely concerning.

On the other hand, a number of recent population-level studies in cities around the world indicate that people who live in greener spaces not only have a lower rate of NCDs, but also have much better physical outcomes and mental health. This relationship remains statistically strong regardless of the socio-economic status, age or gender of the individual. In fact, the evidence for this association is so strong that by 2022, 196 countries worldwide United Nations Biodiversity Conference of the Parties signed an international treaty, part of which included a commitment to significantly increase urban green spaces by 2030.

What is it about green spaces that provides resistance to NCDs? Greater opportunities for exercise, cleaner air and less heat stress are all cited reasons, with evidence supporting the role of urban vegetation in this regard.

Importantly, there is also strong scientific evidence that shows that when we interact directly with nature, biochemical pathways are triggered in our bodies that lead to significant effects. beneficial impacts on health. This research topic began with a group of Japanese scientists trying to determine the true benefits of forest bathing:shinrin-yoku. The evidence they found was so convincing that currently in Japan, instead of medication, patients with certain NCDs are prescribed spend time sitting in forests.

The good news is that we can achieve similar health benefits in urban green spaces and with indoor vegetation. Clinical experiences show that something as simple as having a vase of unscented roses on your desk, for example, can significantly lower your blood pressure and provide physiological and psychological relief. The same goes for leafy plants in your home and office, especially those with green and yellow foliage.


2024-12-28 09:00:00 ,

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