壓力已成為21世紀的重要公共衛生挑戰，對個人健康、家庭關係及職場表現產生深遠影響。世界衛生組織報告指出，職場壓力每年造成高達3000億美元的經濟損失。研究顯示，芳香療法利用天然植物精油，透過調節自律神經系統，減少交感神經活性並提升副交感神經的作用，有助於緩解壓力和焦慮，這是一種風險低且易於推廣的輔助療法。本研究採用量化分析與前實驗設計單組前後測，針對30名年齡介於40至76歲的個體進行測試，這些參與者均透過壓力自覺量表篩選，確保研究開始時他們具有壓力感。使用的設備為深禾醫學科技股份有限公司的「心律血壓計」，測量參與者在未使用精油嗅吸前、嗅吸精油10分鐘後及靜坐休息10分鐘後的心率變異度和相關數據，觀察介入前、中、後的變化。結果顯示，未使用精油前與介入後HRV平均值由33.24提升至41.64，達顯著差異 (p = .015)；在介入後與後續觀察期間，HRV平均值進一步提升至41.97，但未達顯著差異；另外其他的心率變異檢測值如SDNN及HF平均值雖然在介入後有所提升，LF及LF/HF比值則有下降趨勢，但皆未達顯著差異，顯示芳香療法介入後或許有助於活化副交感神經，提升自律神經活性以降低壓力與焦慮感，但需要更多的實證研究及大量樣本的證明。

Stress has become a major public health challenge in the 21st century, with profound consequences for personal health, family relationships and workplace performance. The World Health Organization reports that workplace stress causes economic losses of up to $300 billion each year. Research shows that aromatherapy uses natural plant essential oils to help relieve stress and anxiety by regulating the autonomic nervous system, reducing sympathetic nerve activity and enhancing the role of parasympathetic nerves. It is a low-risk and easy-to-promote auxiliary therapy. This study used quantitative analysis and a pre-experimental design to conduct single-group pre- and post-tests on 30 individuals aged between 40 and 76 years old. These participants were screened through the Stress Perceived Scale to ensure that they felt stressed at the beginning of the study. The medical device used was the “Heart Rhythm Sphygmomanometer” of LotusNine medical Limited. to measure the heart rate variability and related data of participants before sniffing essential oils, after sniffing essential oils for 10 minutes, and after sitting quietly for 10 minutes. Changes before, during, and after intervention. The results show that the average HRV before using essential oils and after intervention increased from 33.24 to 41.64, which was significantly different (p = .015). During the post-intervention and follow-up observation periods, the average HRV further increased to 41.97, but without significant difference. The average values of SDNN and HF increased after intervention, while the LF and LF/HF ratio showed a downward trend without statistically significant differences. It may indicate that aromatherapy can activate parasympathetic nerves, increase autonomic nervous system activity, and effectively reduce stress and anxiety; however, more research and a larger sample size are needed to verify the effect.

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