Most of us move through the natural world without really entering it. We pass through parks, glance at the water, notice the quality of a particular afternoon light — and then continue. We are in nature, but not quite of it.
This distinction matters more than we might think.
What the Body Already Knows
In the early 1990s, Japanese researcher Yoshifumi Miyazaki began what would become decades of systematic study into something that felt intuitively true but had never been rigorously measured: that time spent in forests is genuinely, physiologically restorative.
Working across 24 forests throughout Japan, Miyazaki and his colleagues documented what happens when human bodies enter natural environments. Compared to urban settings, forest immersion consistently produced lower cortisol levels, reduced blood pressure, a slower pulse rate, and a measurable shift toward parasympathetic nervous system activity — the branch of the autonomic nervous system associated with rest, repair, and the kind of quiet alertness in which genuine reflection becomes possible.
Among the most striking findings: participants who walked in forest environments for approximately 15 minutes showed a 102% increase in parasympathetic nervous activity compared to those walking in urban settings. Not a modest uptick. A doubling.
Lyanda Lynn Haupt cites this research in her book Rooted: Life at the Crossroads of Science, Nature, and Spirit, adding a detail that stops you: as a species, we have spent less than 0.01% of our evolutionary history in modern surroundings. Our nervous systems were shaped by the forest, the field, the river — shaped over millions of years before they were shaped by the commute, the screen, or the constant low hum of overstimulation that most of us now accept as ordinary.
When we return to nature, something in the body recognizes it. Not metaphorically. Physiologically. It does not need to be told to relax. It needs an environment in which relaxing is possible, and it responds accordingly.
This is what the Japanese call shinrin-yoku, or forest bathing: intentional, unhurried immersion in a natural environment. No special equipment, no destination. Only presence, slowness, and a willingness to let the senses lead.
Rootedness as a Way of Being
The science is compelling. But it only tells part of the story.
In Rooted, Haupt asks us to consider something deeper than the measurable benefits of time outdoors. She argues that our disconnection from nature is not a lifestyle problem — a modern inconvenience we might remedy with a weekend hike. It is an existential displacement. And the antidote is not an activity, but a relationship.
She speaks of rootedness as an orientation: a way of living in ongoing contact with the living world rather than moving through it. To be rooted is to understand ourselves not as observers of nature but as participants in it, embedded in the same web of relationship that holds the mangroves, the ibis, the strangler fig working its slow way up a cypress in the Everglades.
This is a psychological idea as much as an ecological one.
Haupt writes that even the knowledge that wild, flourishing places exist somewhere beyond our immediate reach affects us positively — that our psychology and creativity are shaped by the mere awareness of wildness in the world. If awareness alone changes something, consider what actual contact does. Consider what it means to put your feet on the ground and let yourself be held, briefly, by something that has existed long before your particular anxieties arrived.
The Therapeutic Dimension
There is a simple exercise that appears across many therapeutic traditions: close your eyes, and let your mind travel to a place where you feel genuinely at ease.
Notice where most people go.
Not an office. Not a familiar room. Almost invariably, the mind moves toward something natural: the sound of water, the quality of light through trees, a particular shore or hillside or open field. We do not have to be taught to find restoration there. Something in us already knows the way.
This is not incidental. The body’s capacity to regulate — to move out of chronic sympathetic activation and into something more spacious — is not purely cognitive. It is relational. It happens in the context of safety, of rhythm, of environments that signal to an ancient nervous system that the present is not dangerous.
Nature, at its most undisturbed, offers this. The irregular patterns of birdsong and wind, the fractal geometries of leaves and water — these register below the level of conscious thought as something the body recognizes. As home.
From a depth psychology perspective, nature also carries meaning that exceeds the physiological. The forest has always been the place where the psyche encounters the unknown, the symbolic, the self. Fairy tales begin in forests for a reason. Transformation, in story and in therapy, often requires a journey into territory that is not yet domesticated — where the ordinary rules suspend and something more essential has room to emerge.
When we step into the natural world with genuine attention, we step into a space where the inner life can move.
We Are Not Separate: On Reciprocity and What Is Being Lost
There is a harder dimension to this conversation, and I think it deserves to be named directly.
To speak about the healing power of nature in April 2026 is to speak in the context of an accelerating assault on it. Environmental protections that took decades to build are being systematically dismantled. Public lands are at risk. Clean water and air regulations are being weakened. The communities most dependent on intact ecosystems — and most vulnerable to their loss — are being told that their protection is expendable.
Haupt’s work carries an implicit argument that I find increasingly urgent: the way we relate to the natural world reflects, and shapes, the way we relate to ourselves. The belief that nature is a resource to be extracted, a backdrop to human activity, a thing without inherent worth — this is the same dissociative logic that allows us to treat human bodies, human communities, and human interiority as similarly expendable. The violence is not separate. It runs along the same fault line.
If we are capable of being restored by the forest — if a 15-minute walk among trees can measurably shift our nervous systems toward safety and repair — then we are, by definition, in relationship with the forest. Relationship carries obligation. What restores us, we have some responsibility toward.
Haupt writes of reciprocity: not extracting from the natural world but entering into genuine exchange with it — attending to it, advocating for it, allowing our love for it to generate the kind of care that love usually generates. This is not sentiment. It is an understanding of interdependence that the research increasingly confirms and that something older in us has always known.
When we allow the living world to be harmed, we are allowing something in ourselves to be harmed. This is not a metaphor. It is an ecological and psychological reality. And it may be one of the most important therapeutic insights of our time.
An Invitation
As April unfolds here in South Florida — the rains beginning to return, the mornings still carrying a trace of coolness — I want to offer something simple alongside the larger question.
Go outside. Not with a destination or a goal or a playlist filling your ears. Just outside.
Let your attention wander. Follow what catches it: the quality of light on water, the particular green of new leaves, a heron standing at the edge of a canal with a stillness that makes you wonder what it knows. Let your pace slow until it matches something other than your to-do list.
Notice what happens in your body when you stop moving through nature and begin, even briefly, to be in it.
And then, if something opens in you — some tenderness, some grief, some recognition — let that be information. Let it inform not only how you care for yourself, but what you are willing to stand up for.
The earth is not a backdrop. It is our home, and we are made of it.
Christina Algeciras, LMHC, NCC is a licensed psychotherapist in Miami, Florida, specializing in depth-oriented psychotherapy, somatic therapy, and trauma-informed care. She works with thoughtful adults navigating identity, anxiety, creativity, and the deeper questions of a meaningful life. In-person sessions available in Coconut Grove; telehealth throughout Florida.
Recommended Reading
Rooted: Life at the Crossroads of Science, Nature, and Spirit by Lyanda Lynn Haupt
For anyone who wants to go deeper with the ideas in this post, Rooted is the place to start. Haupt writes at the intersection of science, philosophy, and the living world — making a rigorous and quietly urgent case for what it means to belong to the earth rather than simply inhabit it. It is the kind of book that slows you down in the best way, and one I return to often.
Shinrin-Yoku: The Japanese Art of Forest Bathing by Yoshifumi Miyazaki
For the science behind forest bathing, Miyazaki’s own book is the authoritative source. He has been researching the physiological effects of time in nature for three decades, and this volume distills that work into something both rigorous and accessible. If the 102% statistic in this post caught your attention, the full body of research is worth exploring here.