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Table 1 Measured physiological parameters and subjective evaluation

From: The physiological effects of Shinrin-yoku (taking in the forest atmosphere or forest bathing): evidence from field experiments in 24 forests across Japan

Autonomic nervous activity Pulse rate, systolic blood pressure, diastolic blood pressure
Heart rate variability (HRV)
 HF component (parasympathetic nervous activity)
 LF/HF or LF/(LF + HF) (sympathetic nervous activity)
Endocrine system activity Salivary cortisol concentration
Immune system activity Salivary immunoglobulin A concentration