The Healing of Trees
In our fast-paced, screen-saturated world, we often forget that nature is not merely a backdrop to human life; it is a vital part of us. Trees, parks, and green spaces do more than beautify our surroundings; they quietly sustain our mental and physical health. A growing body of research reveals that exposure to nature, especially trees, can sharpen our minds, lift our moods, and even help our bodies heal.
Environmental neuroscientist Marc Berman, Ph.D. has spent years uncovering how our surroundings shape the way our brains function. His research shows that even brief interactions with nature, such as walking through a park, sitting beneath a canopy of leaves, or simply gazing out a window at greenery, can lead to measurable improvements in attention, memory, and mood. In one of his landmark studies, participants who spent just 50 minutes walking in a natural setting demonstrated greater cognitive performance and reduced rumination.
Berman describes this effect as soft fascination, a state in which natural sights and sounds gently capture our attention without demanding it. Unlike city environments that constantly pull at our focus, nature allows the mind to rest and replenish. This quiet engagement restores what psychologists call directed attention, freeing us from mental fatigue and allowing emotional balance to return.
Importantly, we don’t need to live deep in the wilderness to experience these benefits. Even a single tree on a city street, or the sight of leaves moving in the wind from an apartment window, can make a measurable difference.
A striking example of this comes from the Toronto Tree Study, which mapped over 580,000 trees across the city and analyzed the health data of 30,000 residents. The findings were extraordinary: adding just one tree per city block was associated with a 1% increase in self-reported health and well-being, comparable to giving people a $10,000 income boost or making them seven years younger. Trees were not just making people feel better; they were actually reducing rates of heart disease, stroke, and diabetes.
The healing influence of nature has also been observed in hospitals. In the 1980s, researcher Roger Ulrich conducted a now-classic study involving patients recovering from gallbladder surgery. Some patients had windows overlooking trees and plants, while others faced a brick wall. The results were simple yet extraordinary: those with a view of nature recovered nearly a full day faster and required less pain medication. Nothing else in their environment had changed, just the presence of trees outside their window.
These studies remind us that the human body and mind are deeply responsive to the natural world. Trees don’t just clean our air or shade our streets; they nourish us at a biological level, calming our nervous systems and quietly support healing.
As cities continue to expand and digital life accelerates, our challenge is not to escape urban living, but to reintegrate nature into it. Planting trees, protecting parks, designing schools and hospitals with green views are essential investments in collective health.
Because, as Berman puts it, “Nature is not optional.”
And perhaps that’s a comforting reminder that my business goal to walk for an hour or two each day isn’t so indulgent after all- it’s an investment in clarity, creativity, and well-being.
With love,
Alexandra Nash