Abstract
It is well-known that odor has a good influence on a human mind and body. In this study, we investigated the effect of the essential oil inhalation of Cyperi rhizoma and Perillae herba which were main aromatic herbs ingredient of the Kososan, to psychological condition, autonomic nerve activity and salivary biomarker. In addition, we examined influence by the favorite difference in odor. 25 healthy female volunteers (control group: 5 people; Cyperi rhizoma group: 10 people; Perillae herba group: 10 people) were examined. POMS was examined at PRE and POST the experiment. Pulse analyser was examined and saliva samples were collected before the inhalation, just after the inhalation, 10 minutes and 20 minutes later, respectively. Saliva samples analyzed for levels of α-amylase and cortisol. At the examination for POMS after the experiment, the preference for the odor was confirmed. About both Cyperi rhizoma and Perillae herba, by the essential oil inhalation, mental stability and relaxation effect were provided in psychological and psysiological evaluation. In the “like” group, relaxation was greater than “unlike” group. However, about Cyperi rhizoma, the stress was relaxed regardless of the favorite difference in odor, and a physical relaxation effect was shown. In addition, about the autonomic nerve activity, the parasympathetic nerve was not activated, and it was suggested that it was made and stabilized the balance of the autonomic nerve.
Highlights
It is well-known that fragrance has a good influence on a human mind and body
We investigated the effect of the essential oil inhalation of Cyperi rhizoma and Perillae herba which were main aromatic herbs of the Kososan, to psychological condition, autonomic nerve activity and relaxation effect
The results might be by mental stability from 30-minute rest. Both in the Cyperi rhizoma group and Perillae herba group decreased the score of all items
Summary
It is well-known that fragrance has a good influence on a human mind and body. The effect of fragrance handed down for a long time has been inspected and advanced to help medical care based on scientific grounds. It was reported that Kososan is effective for an easy case of a cold of the weak constitution that participated in stress [4], and for a tendency to depression such as insomnia and the nervous breakdown [5] [6]. This is representative prescription of the autonomic nerve disease to be used for mental depression with the neurosis [7]. It has been already reported that sleeping time is prolonged only by inhalation of the Kososan for sleep disorder of the isolated stress mouse [8]
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