Kim Choyun, Lee Gayoung, Song Chorong
Department of Forest Science, Kongju National University, 54 Daehak-ro, Yesan-eup, Yesan-gun 32439, Chungcheongnam-do, Republic of Korea.
Healthcare (Basel). 2024 Aug 21;12(16):1667. doi: 10.3390/healthcare12161667.
This study aimed to investigate the effects of prolonged inhalation of nature-derived odors indoors on humans. Twenty-six women participated in this study. Heart rate variability, heart rate, blood pressure, pulse rate, estradiol, testosterone, and cortisol were used as indicators of autonomic nervous system and endocrine system activities. Profile of mood state, state-trait anxiety inventory, menopause rating scale and general sleep disturbance scale were used as psychological indicators. The order was as follows: After the participants relaxed in a chair for 5 min, their heart rate variability and heart rate were measured for 3 min with their eyes closed. Subsequently, blood pressure and pulse rate were measured, salivary samples were collected for estradiol, testosterone, and cortisol analyses, and a subjective assessment was conducted. The participants received a diffuser containing fir essential oil and were instructed on its usage and precautions. Subsequently, they returned home and inhaled the fir oil for a week. After 7 days, participants revisited the laboratory for posttest measurements, conducted at the same time as the pretest. Prolonged inhalation of the fir essential oil resulted in increased estradiol concentration, decreased systolic and diastolic blood pressure, relief of menopausal symptoms, reduced anxiety levels, improved sleep quality and mood states. Prolonged inhalation of the fir essential oil induced physiological and psychological relaxation on menopausal women.
本研究旨在调查在室内长时间吸入天然气味对人体的影响。26名女性参与了本研究。心率变异性、心率、血压、脉搏率、雌二醇、睾酮和皮质醇被用作自主神经系统和内分泌系统活动的指标。情绪状态剖面图、状态-特质焦虑量表、更年期评定量表和一般睡眠障碍量表被用作心理指标。顺序如下：参与者在椅子上放松5分钟后，闭上眼睛测量其心率变异性和心率3分钟。随后，测量血压和脉搏率，采集唾液样本进行雌二醇、睾酮和皮质醇分析，并进行主观评估。参与者收到一个装有冷杉精油的扩香器，并被告知其使用方法和注意事项。随后，他们回家并吸入冷杉精油一周。7天后，参与者回到实验室进行与预测试同时进行的后测试测量。长时间吸入冷杉精油导致雌二醇浓度升高、收缩压和舒张压降低、更年期症状缓解、焦虑水平降低、睡眠质量和情绪状态改善。长时间吸入冷杉精油可使更年期女性产生生理和心理上的放松。
