Imagine a world where the prescription for better health is as simple as stepping outside. Walking among trees, alongside water, and under open skies can change our physiological responses, lower stress levels, and improve our overall well-being. This is the future Dr. Owen Wiseman wants, a model where nature and health are deeply connected. He challenges the idea that nature is just an optional retreat, arguing instead that it should be fundamental to how we think about health.
Nature as essential health infrastructure
Dr. Owen Wiseman believes the natural environment should be valued alongside clinics and hospitals in public health planning. The proposal may seem bold, but its logic is straightforward. Nature can tackle a range of health concerns at once: reducing stress, lowering blood pressure, and easing loneliness. Time spent around trees, parks, and green spaces means less exposure to pollutants, more physical activity, and increased opportunities for social connections. These combined effects can make a significant difference in public health. Research backs this up, showing that time in nature can lower blood pressure to the same degree as some medications.
Nature can tackle a range of health concerns at once: reducing stress, lowering blood pressure, and easing loneliness.The idea of prescribing time outdoors may be closer to mainstream medicine than it first appears.
Wiseman encourages us to see public spaces interlaced with greenery as an avenue for large-scale health improvement. A tree planted on a city street might ultimately offer benefits as crucial as those provided by the nearby clinic. The numbers suggest this may not be far-fetched, prompting city planners and health advocates to pay closer attention to how our environments support or hinder well-being.
The underestimated power of green spaces
For Dr. Wiseman, the bond between nature and health is personal as well as professional. Memories of his grandmother’s cottage by the lake aren't just family nostalgia, they're reminders of how deeply restorative the natural world can feel. Long before his medical training, he felt better simply being outdoors. Now, scientific studies give those experiences a clinical foundation: green spaces are not luxuries but essentials for both physical and mental health.
Access to greenery isn't just about making cities look nicer; it's about offering real public health benefits.
Consider Ottawa's study on urban tree cover: its findings highlight how not everyone has equal access to green space, and that this gap matters for health outcomes. Access to greenery isn't just about making cities look nicer; it's about offering real public health benefits. Even digital encounters with nature, like a screensaver of a forest or ocean scene, can calm us, lowering cortisol levels and improving heart rate variability. These findings make clear that our need for nature runs deep, and access to it can come in unexpected forms.
From individual wellness to collective health
Dr. Wiseman sees the need for more than personal advice about spending time outside; he argues for policy-level change that gives everyone greater access to green areas. The economic case is real, analyses show that investing in natural infrastructure can save money across the healthcare system. In cities where trees and parks are scarce, the push for more green space is both a social equity issue and a public health priority.
This isn't something individuals can solve by themselves. City planners and policymakers have to step in, especially in neighborhoods where greenery is limited or absent entirely. Infrastructure that supports daily outdoor activity, shade trees on sidewalks, park corridors that encourage walking, should be part of every community’s blueprint for better health. When city design supports time outside as an ordinary part of life, the payoff goes beyond nice views; it reshapes how an entire society approaches healing and wellness. And sometimes, better health really does begin by stepping outdoors.
