Key Takeaways: Forest Bathing, Stress, and the Power of Trees
- Forest bathing (shinrin‑yoku) is a simple, science‑backed practice that can lower cortisol, reduce stress, and improve mood and immunity.
- Just 20–30 minutes among trees can significantly reduce hostility and depression while boosting energy and focus, according to Japanese forest‑bathing research.
- Trees release phytoncides, natural compounds shown to significantly increase natural killer (NK) cell activity for several days.
- Leading forest‑medicine expert Dr. Qing Li, MD, PhD, recommends a short, phone‑free forest or park walk as one of the best ways to manage modern work stress and mental fatigue.
- By restoring forests in landscapes around the world, we’re restoring natural medicine for mental and physical health.
Forest Bathing: The Simple Power of Walking in the Woods
Forest bathing, or shinrin-yoku, is a Japanese practice that harnesses the restorative power of slow, intentional walks in wooded areas. Developed in the 1980s by Tomohide Akiyama, then Director General of Japan's Ministry of Agriculture, Forestry, and Fisheries, the practice was designed to address Japan's rapid urbanization by encouraging people to reconnect with nature.
In this way, shinrin-yoku could be seen as the ultimate antidote to modern life. Today, forest bathers around the world are intentionally immersing themselves in the sights, sounds, and smells of nature.
Healing Our Relationship With Nature
Nature and trees provide many natural benefits to our health and well-being. When people walk among trees, their cortisol drops significantly: a 2019 meta-analysis published in the NIH National Library of Medicine found groups who spent time forest bathing had -0.05 μg/dl lower levels than city walkers (p<0.01) — and that the effects lasted for days.
This is huge at a time when much of the industrialized world has disconnected from nature. We've paved over wetlands, sealed our homes against the elements, and limited our direct contact with the natural world. But while we're busy laying pavement and raising cities, nature continues to do the slow, steady work that makes life possible.
We aren’t meant to sit in front of screens all day, eat processed foods, or only view nature from behind a window. We're meant to "live in the sunshine, swim the sea, and drink the wild air," as put by Ralph Waldo Emerson.
That's where forest bathing; the practice of “walking slowly through the woods, in no hurry, for a morning, an afternoon, or a day,” comes in. The path through the woods can lead us back to ourselves.
Your Body's Response to Trees
A 2007 Japanese study of 280 adults showed forest walks cut hostility/depression scores (p<0.001) and boosted liveliness (p=0.001). Nature's ultimate therapy can also activate our immune system: forests release phytoncides, compounds shown to significantly boost natural killer (NK) cells for more than a week.
Dr. Qing Li, MD, PhD, a world-renowned expert in forest medicine and immunology, and a leading researcher in forest medicine, describes forest bathing as one of the simplest yet most powerful tools for modern stress.
In his book Forest Bathing: How Trees Can Help You Find Health and Happiness, he explains:
“The best way to deal with stress at work is to go for a forest bath. I go for shinrin-yoku every lunchtime. You don’t need a forest; any small green space will do. Leave your cup of coffee and your phone behind and just walk slowly. You don’t need to exercise, you just need to open your senses to nature. It will improve your mood, reduce tension and anxiety, and help you focus and concentrate for the rest of the day.”
How to Start Forest Bathing Today
Ready to try forest bathing? Here's how:
- Head a wooded park forest nearest to you, pocket your phone, and bring your awareness to your senses.
- Close your eyes and listen to the trees swaying and creaking in the wind.
- Feel that same wind moving over and through you. Listen to the life around you; birds calling, insects buzzing, trees shifting.
- Open your eyes and scan your surroundings, taking in colors and patterns, the interplay of light and shadow.
- Reach out and touch the trunk of a tree, feeling the bumps, the grooves, the bark beneath your fingers.
- Breathe deeply and smell the green understory plants, the sharp twang of evergreen, the sweetness of the soil.
- If you feel comfortable, remove your shoes and feel the solid earth beneath your feet.
If you can't get to a forest or wooded park, that’s okay: there are other ways to connect with nature. These include keeping plants in your home or workplace, taking the scenic route, eating your lunch outside, or planting a garden. You can even play the soothing sounds of the forest on your phone.
And if you'd like to help ensure future generations can also enjoy the health benefits of forest bathing, consider supporting reforestation with us!
