What is Nature Therapy?
Nature therapy—also known as ecotherapy, green therapy, or forest therapy—is an overarching term describing the use of natural environments or nature-based interventions to improve mental and physical health. The practice involves deliberate, often guided, immersion in outdoor settings, ranging from forest bathing to therapeutic horticulture to wilderness therapy. Unlike casual recreation, nature therapy emphasizes mindful presence, sensory engagement, and the therapeutic relationship between human and non-human nature.
The practice rests on accumulating physiological evidence: exposure to natural settings measurably reduces cortisol levels, lowers blood pressure and heart rate, and enhances immune function. Nature therapy is distinct from adventure therapy or outdoor recreation; it is not about physical exertion or skill-building, but about restoring nervous system balance through contact with living systems.
Origins & Lineage
Indigenous cultures worldwide have maintained nature-based healing traditions for millennia. However, the modern Western term “ecotherapy” was coined by cultural historian Theodore Roszak in his 1992 book The Voice of the Earth, establishing a framework for understanding psychological well-being through ecological connection. Roszak drew on ecopsychology, an emerging field studying the relationship between human psychology and the natural environment through both ecological and psychological principles.
The most influential contemporary practice emerged in Japan. In 1982, Tomohide Akiyama, Director of the Japanese Ministry of Agriculture, Forestry and Fisheries, coined the term shinrin-yoku (森林浴, “forest bathing”) as part of a national public health campaign addressing urban burnout. The initiative encouraged citizens to spend time in Japan’s forests—which cover nearly 70% of the country—to counteract stress-related illness. By 1990, the first scientific investigations of forest environments’ physiological effects were conducted in Japan, and in 2007, Japan’s Forest Medicine Study Group was formally established to advance evidence-based research.
In the 16th century, Quakers in England pioneered nature-based therapeutic approaches for individuals who would otherwise have been institutionalized, representing an early Western formalization. In the 1980s, biologist Edward O. Wilson popularized the biophilia hypothesis in his 1984 book Biophilia, proposing that humans possess an innate, genetically-based tendency to seek connections with nature and other life forms—a concept that provided theoretical grounding for nature therapy’s efficacy.
How It’s Practiced
Nature therapy encompasses a spectrum of structured interventions. Forest bathing or shinrin-yoku typically involves slow, mindful walking in forested areas, focusing on sensory awareness—sounds, textures, scents—rather than destination or exercise. Sessions often last 2-3 hours and may include guided invitations to sit, observe, or engage specific senses.
Horticultural therapy uses gardening and plant-based activities in clinical settings. Wilderness therapy involves multi-day backcountry immersions with therapeutic processing. Outdoor behavioral healthcare addresses specific populations, particularly adolescents with behavioral or substance issues. Ecotherapy may also mean conducting traditional talk therapy outdoors in green spaces.
Certified nature therapy guides or forest therapy guides—distinct from licensed therapists—facilitate experiences. The Association of Nature and Forest Therapy (ANFT), founded over a decade ago, trains guides in a 7-day intensive plus 4-month integration program, emphasizing “Relational Forest Therapy,” which positions nature as co-facilitator rather than backdrop. Other training bodies include the Forest Therapy School, Natural Wellness Academy, and academic programs at institutions like Prescott College and Naropa University.
Sessions occur in diverse settings: designated forest therapy trails in Japan, urban parks, hospital healing gardens, or indoor spaces using nature sounds and imagery when outdoor access is limited.
Nature Therapy Today
Practitioners today include mental health professionals integrating nature into existing practices, certified guides offering public walks, and healthcare systems prescribing nature exposure. Japan maintains certified forest therapy bases, and the practice has spread to California, the UK, and Europe. Corporate wellness programs increasingly incorporate forest bathing; retreat centers offer multi-day nature immersions.
Research institutions, particularly in Japan, continue publishing physiological studies. A 2009 study across 24 Japanese forests documented reduced salivary cortisol, blood pressure, and pulse rate after forest exposure compared to urban settings. Evidence remains mixed on standardized outcomes, with some researchers noting methodological limitations, but consensus supports stress reduction and mood improvement.
The COVID-19 pandemic accelerated interest as isolation heightened awareness of nature deficit. Organizations like the International Nature and Forest Therapy Alliance (INFTA) and the Center for Nature Informed Therapy offer training and advocacy.
Common Misconceptions
Nature therapy is not simply hiking, exercise, or spending time outdoors casually. The practice emphasizes stillness and sensory presence rather than physical achievement. It is not a replacement for clinical mental health treatment; guides are not therapists unless separately licensed.
The term “therapy” itself is contested. In many jurisdictions, only licensed professionals may legally practice “therapy.” Many practitioners use “forest bathing guide” or “nature connection facilitator” to avoid legal issues.
Cultural appropriation concerns exist, particularly regarding wilderness therapy programs that superficially adopt Indigenous practices without understanding or permission. The field acknowledges tension between evidence-based Western medicine frameworks and Indigenous ways of knowing.
Nature therapy is not inherently spiritual, though many practitioners integrate contemplative or earth-based practices. Scientific approaches focus on measurable physiological responses—phytoncides (airborne chemicals from trees), fractal patterns, biophilic responses—rather than metaphysical claims.
How to Begin
Start with unguided practice: find a nearby natural area (urban parks suffice), leave devices behind, and walk slowly for 20-30 minutes with attention to sensory details. Notice textures, sounds, light patterns. Sit for extended periods. The key is slowing down and receptivity.
For structured introduction, seek certified guides through ANFT’s directory or local forest therapy organizations. Many offer free or low-cost introductory walks. M. Amos Clifford’s Your Guide to Forest Bathing (2018) provides accessible instruction.
For research foundations, Yoshifumi Miyazaki’s Shinrin-Yoku: The Japanese Art of Forest Bathing (2018) synthesizes Japanese studies. Craig Chalquist’s 2009 review “A Look at the Ecotherapy Research Evidence” surveys broader interventions. Academic programs like Prescott College’s Graduate Certificate in Nature-Based Counseling offer formal training for professionals.
Simple green exposure matters: even five minutes in green spaces produces measurable mood improvements. A 1984 study by Roger Ulrich in Science found hospital patients with nature views recovered 8.5% faster than those facing brick walls. Begin where you are.