T he Japanese Ministry of Agriculture, Forestry, and Fisheries coined the term shinrin-yoku or forest-bathing in 1982 . Bathing in the forest, however, has nothing to do with water. The idea is to immerse yourself in a natural environment and soak up the many health benefits of being in the green woods. Forest bathing has been widely researched. One Japanese study that appeared in the Internationa
Why Does Forest Bathing Develop?
Understanding what causes forest bathing is essential for prevention and treatment. Research consistently shows that forest bathing arises from a complex interplay of biological, psychological, and social factors — rarely from a single cause.
What Researchers Have Found
Research into forest bathing has identified multiple contributing pathways. Studies using neuroimaging, genetics, and longitudinal data reveal that no single factor fully explains why forest bathing develops.
Biological Factors
Biological contributors to forest bathing include:
- Genetics: Family history increases risk; certain genes influence vulnerability
- Brain chemistry: Neurotransmitter imbalances (serotonin, dopamine, norepinephrine) play key roles
- Brain structure: Differences in the prefrontal cortex, amygdala, and hippocampus are documented
- Physical health: Chronic illness, hormonal changes, and sleep disruption can trigger or worsen forest bathing
Psychological Factors
- Early experiences: Childhood adversity, attachment disruption, and trauma shape psychological vulnerability
- Cognitive patterns: Negative thinking styles, perfectionism, and rumination increase risk
- Coping skills: Limited emotional regulation skills make forest bathing more likely under stress
- Personality: Certain traits (neuroticism, harm avoidance) are associated with higher risk
Social and Environmental Factors
Environmental factors — including chronic stress, relationship problems, financial difficulty, and major life events — can trigger forest bathing in vulnerable individuals.
What Triggers an Episode?
Even in people with predisposing factors, forest bathing often requires a triggering event:
- Major life transitions (job loss, relationship breakdown, bereavement)
- Prolonged stress without adequate recovery
- Substance use or withdrawal
- Physical illness or injury
- Social isolation or conflict
Protective Factors
Not everyone with risk factors develops forest bathing. Protective factors include: strong social support, effective coping skills, physical health maintenance, access to care, and psychological resilience built through prior challenges.