Two hour of forest bathing as part of a 1-day outing in a forest environment can lead to improvements in physiological and psychological health.

PMID: 

Environ Health Prev Med. 2019 Jun 22 ;24(1):46. Epub 2019 Jun 22. PMID: 31228960

Abstract Title: 

A comparative study of the physiological and psychological effects of forest bathing (Shinrin-yoku) on working age people with and without depressive tendencies.

Abstract: 

BACKGROUND: In recent years, many of Japanese workers have complained of fatigue and stress, considering them as risk factors for depression. Studies have found that"forest bathing"(Shinrin-yoku) has positive physiological effects, such as blood pressure reduction, improvement of autonomic and immune functions, as well as psychological effects of alleviating depression and improving mental health. In this study, we investigate the physiological and psychological effects of"forest bathing"on people of a working age with and without depressive tendencies.METHODS: We conducted physiological measurements and psychological surveys before and after forest bathing with subjects who participated in day-long sessions of forest bathing, at a forest therapy base located in Hiroshima Prefecture. After excluding severely depressed individuals, the participants were classified into two groups: those with depressive tendencies (5 ≤ K6 ≤ 12) and those without depressive tendencies (K6 

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