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When I want to feel better, I go for a walk. It’s so ingrained at this point—a habit built somewhere in the fog of pandemic years—that the association is almost Pavlovian: outside, lifted. It works every time, and I’ve stopped questioning it.
But I wanted to understand the why behind it. What’s actually happening in the brain and nervous system when you step outside? So I went looking for the science to back up what I already suspected: that stepping outside doesn’t just shift your mood, it transforms your entire physiology. It’s fractal patterns signaling safety to your amygdala. It’s cortisol dropping in real time. It’s your nervous system doing something it genuinely cannot do indoors.
To go deeper, I spoke with Clara Schroeder, an ecotherapist and bestselling author, who introduced me to an idea I hadn’t considered: that our mental health crisis might be, at its root, an ecological one.
Clara Schroeder
Clara Schroeder is an ecotherapist, speaker, and best-selling author of Re-Nature: How Nature Helps Us Feel Better and Do Better. Clara’s expertise has been trusted by leading organizations, including UCSF, Microsoft, Women in Cloud, Terumo Neuro, and Aura Health. She holds a Master’s in Psychology and Education from Columbia University’s Spirituality Mind and Body Institute, led by renowned clinical psychologist Dr. Lisa Miller. As a Certified Ecotherapist, Institute Certified Mindfulness Teacher, Co-Active Professional Coach, and a Wilderness First Responder through NOLS, she offers a grounded, science-backed pathway to sustainable transformation.
The Nature-Mental Health Connection, Explained
The research on this goes back further than you might think. In the 1990s, Japanese scientists began studying what they called “forest bathing”—the practice of spending intentional time in nature—and found something striking: stress hormones dropped, blood pressure fell, heart rate slowed. The results were consistent enough that follow-up studies replicated them across different populations and methodologies. Even a fifteen-minute walk outside was enough to move the needle.
Why Nature Feels Safe to Your Brain
But why? Clara points to something most of us have never heard of: fractal patterns. “Fractal patterns are repeated rhythmic patterns found in nature,” she explains—ocean waves, tree branches, flower petals. “They signal predictability to the amygdala, which in turn reduces stress hormones such as cortisol.” In other words, your brain recognizes nature as safe. The amygdala, which is responsible for detecting threat, quiets down in green spaces in a way it simply cannot in a city environment overstimulated by noise, traffic, and crowds.
The Implications Go Beyond Stress
Studies on depression found that patients who walked in nature reported significantly reduced symptoms compared to those who walked through urban environments. Research on post-operative patients found that even images of trees and water reduced pain medication needs and anxiety during recovery. And for people living in cities—where mood and anxiety disorders are measurably more common—Clara’s framing lands differently: “The amygdala is often overstimulated and always ‘on’ in city environments.” Chronic nervous system dysregulation, she says, is one of the ways disconnection from nature manifests physically.
A More Personal Argument
Clara’s own path into this work adds another dimension. During her recovery from a traumatic brain injury, most of her normal wellness routines were taken away. What remained was attention—to the way sunlight moved through a window, to birdsong, to the slow arrival of spring. “The bigger teaching that nature reflected back to me while I healed,” she says, “is that nothing stays the same, and not everything needs to be rushed.” It’s a quieter argument for nature than the cortisol studies, but in some ways a more persuasive one.
What the Mental Health Crisis Is Really About
That quieter argument extends into something larger. Clara offers a reframe that’s worth sitting with: our mental health crisis isn’t just psychological—it’s ecological. “We are living in a society that’s becoming more and more disconnected from the natural world,” she says. The more digitally connected we become, the more ecologically disconnected we are. That’s not an argument against technology, she’s quick to clarify, but an argument for balance—for returning, with intention, to what’s real and alive outside our doorstep.
The good news, she says, is that the solution doesn’t have to be dramatic. “It can be as simple as going for a walk at the end of the day or caring for an indoor plant inside your apartment. Any step towards nature connection will inevitably boost mood and improve wellbeing.”
How to Bring Nature In When You Can’t Get Outside
This is where Clara’s work gets most practical—and most accessible. For anyone who can’t easily reach green spaces, whether because of where they live, how long they work, or other barriers entirely, she offers a different entry point: bring nature to you.
One of her favorite tools is a grounding nature meditation, in which you visualize being in a nourishing natural setting. She’s made one available for free on her website. But if meditation isn’t your thing, there are other ways in. Clara suggests creating a nature altar at home—a small arrangement of natural elements, shells, stones, dried flowers, seasonal branches, that you tend and change out over time. It’s a simple practice, but it does something significant: it makes you a participant in the seasons rather than a bystander to them.
She also points to something most of us overlook entirely. “Remember that weather is a part of nature, as is the water in your faucet. Everything is part of a larger ecosystem to which we belong as well—the trick is to actually pay attention and expand our awareness to include nature’s cycles.”
Ecotherapy as a Way of Life
What Clara wants people to understand most is that ecotherapy isn’t a wellness intervention you schedule and then move on from. “It’s also a way of life,” she says. “Ecotherapy practices will teach you to re-evaluate how you belong to the greater planetary ecosystem—and if you really lean into the work, also reveal things about your purpose and dreams.”
Nature, in this framing, becomes something you turn to the way you might turn to a therapist or a coach—except it’s available every morning, every season, every time you notice the light shifting through a window. The practice is less about adding something new to your life and more about paying a different kind of attention to what’s already there.
Your Sign to Step Outside
I came to this research looking for a scientific explanation for something I already knew to be true. What I found was bigger than that—a whole framework for understanding why the walk always works, why the light through a window can shift something, why a handful of wildflowers on a counter changes the feeling of a room. The science backs it up. But honestly? You already knew.
This post was last updated on June 14, 2026, to include new insights.