Could Forest Bathing Really Reduce Stress?

Reviewed by the HyaluFlow Health Editorial Team | Published: June 17, 2026 | Last Updated: August 24, 2026

Quick Answer: Forest bathing may help reduce stress, anxiety, and some short-term physiological measures such as heart rate. Research on immune effects, including natural killer cell activity, is promising but not strong enough to say that forest bathing prevents infections or disease.

You do not need to hike for hours or follow a complicated routine. The basic idea is surprisingly simple: slow down, spend time among trees, and deliberately notice what you see, hear, smell, and feel.

What Is Forest Bathing?

Forest bathing, known as shinrin-yoku in Japan, does not involve swimming. It means immersing yourself in a forest atmosphere and paying attention to your surroundings without treating the walk as a race or workout.

You might walk slowly, sit beneath trees, listen to birds, notice the scent of leaves, or simply observe the landscape. The emphasis is on sensory awareness rather than reaching a destination.

Can Forest Bathing Actually Reduce Stress?

Research suggests it can. A systematic review of nature exposure found that spending time in natural environments was associated with improvements in both perceived and physiological measures of stress.

The Systematic Review on Nature Exposure and Physiologic Stress found an inverse relationship between nature exposure and several physiological stress markers across the studies reviewed.

Another review specifically examining forest bathing found that cortisol, a hormone involved in the body's stress response, was often lower after forest exposure compared with control conditions. However, study quality and methods varied.

What About Anxiety and Mood?

This may be one of the more promising areas of forest-bathing research. A systematic review and meta-analysis involving 36 studies and 3,554 participants found that forest bathing was associated with reductions in symptoms of anxiety and depression.

The 2023 systematic review and meta-analysis of forest bathing also examined mood, quality of life, blood pressure, and heart rate, although physiological findings were less consistent.

That does not mean a forest walk treats an anxiety or depressive disorder. Instead, nature exposure may be a useful complementary wellness activity for some people.

Could Trees Affect Your Immune System?

This is where some of the most interesting claims about forest bathing become more complicated. Trees release volatile compounds called phytoncides, and researchers have investigated whether exposure to these compounds can influence immune activity.

Earlier forest-bathing research has reported changes in natural killer, or NK, cell activity after forest exposure. A systematic review of medical research on shinrin-yoku reported potential effects on immune and inflammatory measures, but the underlying studies varied in quality and design.

So it is too strong to say that breathing forest air “boosts immunity” in a way that prevents infections. More rigorous research is needed to determine the real-world clinical importance of these findings.

Can Forest Bathing Lower Blood Pressure?

Possibly, at least temporarily. A systematic review and meta-analysis of 20 trials involving 732 participants found that systolic blood pressure was lower in forest environments than in non-forest environments.

The systematic review of shinrin-yoku and blood pressure supports the possibility of short-term cardiovascular benefits, but forest bathing should not be considered a replacement for blood-pressure medication or medical care.

How Do You Practice Forest Bathing?

Keep it deliberately simple. Put your phone away, slow your pace, and spend time noticing the sounds, textures, colors, scents, and temperature around you.

There is no need to hit a particular distance or step count. The goal is mindful exposure to nature, whether that means a quiet forest walk, sitting beneath trees, or observing a natural area.

Common Myths About Forest Bathing

Myth: Forest bathing means swimming in a forest.
Reality: It is a Japanese practice of immersing yourself in the forest atmosphere through slow, mindful observation.

Myth: Phytoncides automatically strengthen your immune system.
Reality: Some studies report changes in immune markers, but evidence is not strong enough to claim that forest exposure prevents illness.

Myth: You need a remote forest to benefit.
Reality: Research on nature exposure includes different types of natural environments. A nearby green space may still provide an opportunity to spend time in nature.

Who Should Pay Attention?

Forest bathing may be worth considering if you want a low-cost way to incorporate more nature and mindful activity into your routine. It can also provide gentle movement when you choose to walk.

People with mobility limitations can adapt the practice by sitting or spending time in an accessible natural setting. Anyone with significant anxiety, depression, or another medical condition should not use forest bathing as a substitute for professional care.

What the Science Says

Evidence strength: Moderate for short-term stress and psychological benefits; limited for immune effects. Systematic reviews consistently suggest potential benefits for stress and psychological well-being, but studies vary in design, duration, and quality.

A 2026 systematic review and meta-analysis of shinrin-yoku found reductions in heart rate, tension-anxiety, and depression-related measures, but rated the overall certainty of evidence as very low because of bias, inconsistency, and imprecision.

Bottom Line

Forest bathing is not a miracle therapy, but it may be a simple way to slow down and spend more time in nature. The strongest evidence points toward potential short-term benefits for stress, anxiety, mood, and some physiological measures.

You do not need to “detox” in a forest or chase an immunity boost. Instead, treat shinrin-yoku as a practical mindfulness habit that can complement a healthy lifestyle and give your mind a reason to slow down.