What Nature Therapy and Forest Bathing Research Actually Shows
Nature therapy and forest bathing research shows that spending time in green spaces is linked to lower stress levels, better mood, and improved focus for many people, though the size of the effect varies by study. Forest bathing, also called shinrin-yoku, is a slow, sensory-focused practice of being present in a forest or wooded area. It is not a medical treatment, but researchers funded by agencies such as the National Institutes of Health have studied it as a way to support mental and physical well-being.
Before You Start: A Few Safety Basics
Nature time is generally low-risk, but a few basics matter. Check weather and trail conditions before you go, tell someone your route if you are heading somewhere remote, carry water, and dress for ticks and sun exposure in wooded areas. If you have a heart condition, breathing condition, mobility limitation, or another health concern, talk with a qualified healthcare provider before starting a new outdoor routine, especially one involving uneven terrain or heat.
What Is Forest Bathing, Exactly?
Forest bathing began in Japan in the 1980s as a public health idea, not a workout. The word shinrin-yoku translates roughly to “forest bathing” or “taking in the forest atmosphere.” Unlike hiking or trail running, forest bathing is intentionally slow. The idea is to use your senses- sight, sound, smell, and touch- to notice the environment around you instead of reaching a destination or hitting a step count.
Some people practice it alone. Others join sessions with a trained guide who leads short, structured invitations, like pausing to notice sounds or textures. Both approaches fall under the same general umbrella of nature-based practices, which researchers group under nature contact or green space exposure.
What the Research Says
The National Center for Complementary and Integrative Health (NCCIH), part of the NIH, has highlighted nature contact as an emerging area of research with potential relevance to public health. Work summarized by NCCIH notes that nature experience is being studied for its effects on mood, cognitive function, and emotion regulation, and that the current evidence shows promise as a supportive approach for a range of psychological and physical health challenges.
A systematic review and meta-analysis of nature-based outdoor activities, indexed in PubMed, examined structured outdoor programs for mental and physical health. The review found accumulating evidence that engaging with green and blue spaces (parks, woodlands, and water) is associated with mental health benefits, but it also found that the type, length, and format of the activity affect the results, and that more consistent research is still needed to know exactly which approaches work best for which people.
A separate review of forest bathing research found that some studies reported changes, such as lower blood pressure and calmer heart rates, during forest time compared with city environments. These findings are not consistent across every study, and researchers have noted that many trials are small or vary widely in design, which is part of why this remains an active area of study rather than a settled conclusion.
Forest Bathing vs. Other Nature-Based Options
Not everyone has access to a forest, and that is fine. Here is how the main options compare, based on what researchers have studied so far:
- Guided forest bathing: Slow, sensory-focused, sometimes led by a trained guide; researched mainly for stress and mood; usually requires travel to a wooded area and more time (an hour or more).
- Self-guided time in nature: Walking, sitting, or resting in a park, trail, or wooded area at your own pace; more accessible than guided sessions; studied as part of the broader “green space exposure” research base.
- Urban green space (parks, tree-lined streets): Convenient for city dwellers; research suggests some benefits from everyday nature contact, though generally studied separately from deep-forest settings.
- Indoor nature contact (plants, natural light, window views): The most accessible option; early research suggests some benefit, but it is studied far less than outdoor nature contact and should not be treated as equivalent.
A Simple Way to Try It
You do not need special equipment or a forest an hour away to start experimenting with nature-based practices. A basic starting checklist looks like this:
- Pick a green space you can reach in 15 minutes or less, a park, trail, or tree-lined area.
- Set aside 15 to 30 minutes without a fitness goal, phone calls, or a destination in mind.
- Leave your phone on silent, or in a bag, so you are not tempted to check it.
- Use your senses on purpose: notice five things you can see, three sounds you can hear, and one thing you can smell.
- Walk slowly or sit rather than exercise at pace.
- Repeat two to three times a week if it fits your schedule, and adjust the length as needed.
Where the Evidence Is Still Limited
It is worth being honest about what the research does not yet show. Most nature-based studies are relatively short, many rely on self-reported mood rather than long-term health outcomes, and study designs vary a lot from one trial to the next. Researchers have not established a standard “dose” of nature time that works best for everyone, and results can differ based on a person’s baseline stress level, health status, and even the specific location studied. Nature time is best understood as a supportive wellness habit, not a replacement for medical or mental health treatment.
Who Should Use Extra Caution
A few groups may want to take extra care or check with a provider first:
- People with heart or lung conditions, especially before longer walks in heat, cold, or uneven terrain.
- People with severe allergies to pollen, mold, or insect stings.
- People managing anxiety, depression, or another mental health condition, who should treat nature time as an addition to, not a substitute for, professional care.
- Anyone with mobility limitations who should choose accessible, well-maintained paths.
Frequently Asked Questions
Is forest bathing the same as hiking?
No. Hiking is usually goal- and distance-focused. Forest bathing is intentionally slow and sensory-focused, with no destination or pace goal.
How long do I need to spend in nature to notice a difference?
Research varies on this, and there is no single confirmed number. Many study designs use sessions ranging from 15 minutes to a couple of hours, but individual results vary, and researchers have not settled on a single ideal duration.
Can a city park work if I don’t have access to a forest?
Yes, based on the broader research on green space exposure. A forest is not required. A park, greenway, or tree-lined path can still count as meaningful nature contact.
Can forest bathing treat anxiety or depression?
No. It is a supportive wellness practice, not a medical treatment. If you’re managing anxiety, depression, or another mental health condition, talk with a qualified healthcare provider about a full care plan.
This article is for general educational purposes and is not medical advice. It does not diagnose, treat, or replace care from a qualified healthcare provider. Talk with a doctor or mental health professional before starting a new health routine, especially if you have an existing medical condition.
Related reading on Make Time For Wellness: Time in Nature: What Research Shows About Green Space, Walking and Health, The Wellbeing Benefits of Spending Time in Nature, 5 Simple Breathing Exercises to Calm Everyday Stress, and Mindfulness for Beginners: How to Start With Just 5 Minutes a Day.