Forest bathing trip is a short,leisurely visit to forest.In this study we determined the health effects of forest bathing trip on elderly patients with chronic obstructive pulmonary disease(COPD).The patients were randomly divided into two groups.One group was sent to forest,and the other was sent to an urban area as control.Flow Forest bathing trip is a short, leisurely visit to forest. This patients we determined the health effects of forest bathing trip on elderly patients with chronic obstructive pulmonary disease (COPD). The group was sent to forest. forest, and the other was sent to an urban area as control. Flow