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JOURNAL ARTICLE

Inhalation of Japanese cedar (Cryptomeria japonica) wood odor causes psychological relaxation after monotonous work among female participants

Eri Matsubara, Tatsuro Ohira
Biomedical Research 2018, 39 (5): 241-249
30333431
Essential oils have potential to mitigate stress symptoms and treat symptoms related to mental health. Few studies have investigated the effects of wood-derived aromatics on endocrinological and psychological responses in an actual space. In this study, we evaluated the effects of essential oil derived from Japanese cedar (Cryptomeria japonica) wood on the recovery state of female participants after they performed monotonous work. We determined the levels of salivary stress markers to describe the endocrinological responses. And we also used questionnaires to assess the perception of the odor of experimental rooms and psychological states. We found that olfactory stimulation with the volatile compounds of essential oil derived from Japanese cedar wood modulates mood states, and may transiently decrease sympathetic nervous activity. We suggest that olfactory stimulation with the volatile compounds of essential oil derived from Japanese cedar wood could be useful for maintaining mental health among women.

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