The scents which permeate our overall health spas from aromatic essential oils may provide more benefits than simply a sense of rest and well-being.
For according to a new paper(1) inside European Journal of Preventive Cardiology, the primary oils which form the foundation aromatherapy for to reduce anxiety may also be reported to get a beneficial influence on heartrate and blood pressure levels following short-term exposure – and may even therefore lessen the risk of coronary disease. However, within the downside, those benefits were reversed when contact with essential oils lasted more than an hour.
The learning was performed in males and females working in various spa centres inside the town of Taipei in Taiwan, in which the traditions of ancient Chinese civilisations are maintained in religious ceremonies and healing therapies. Aromatherapy, as practised today, is presented as restorative with essential oils extracted by infusion from aromatic plants.
One hundred young, healthy non-smoking spa workers involved in the learning visited the research centre on three occasions (about once weekly), when each volunteer was exposed to vapours of essential oils released from an ultrasonic ioniser for two hours. During this time as well as on each visit three repeated measurements – resting heartrate, systolic blood pressure levels (SBP), and diastolic blood pressure level (DBP) – were taken from each spa worker inside the study room, a tiny space measuring 4 metres tall by 3.5 m long and 3.2 m in width. Before each participant entered case study room, 100% pure bergamot volatile oil was vaporised for 60 minutes.
Essential oils are volatile organic compounds (VOCs) made up of a huge selection of aromatic chemicals, and VOC levels in the room were also measured through the entire study period.
Results showed (after adjusting for age, sex, BMI, day of the week, and visit order) that this room’s VOC level was significantly associated with reduced hypertension and heart rate for between 15 and hour after the start of exposure. These associations were statistically significant. By way of example, after 45 minutes exposure 15-minute SBP had reduced by way of a mean of two.10 mmHg and pulse by 2.21 metronome marking.
However, after exposure for longer than sixty minutes – from 75 to two hours after the start of exposure – VOC levels became linked to a heightened 15-minute mean high blood pressure and heartbeat. After two hours, e.g., mean SBP had risen from baseline by 2.19 mmHg, and pulse rate by 1.70 beats per minutes. Thus, say the authors, “prolonged exposure longer than sixty minutes to essential oils can be unhealthy for cardiovascular health in young, healthy subjects”.
As background towards study the authors observe that aromatherapy is almost certainly for peace and regarding some healing properties. Even exposure to the fundamental oil vapours from fragrant candles has been found to relieve test-taking anxiety among nursing school students in the us.
However, says investigator Dr Kai-Jen Chuang from Taipei Medical University in Taiwan, it’s still unknown if experience of oil enhances the risk of cardiovascular events by way of a partial effect on blood pressure and heartbeat.
“Our results report that experience of volatile oil for sixty minutes can be effective in reducing pulse and blood pressure levels,” said Dr Chuang. “However, one of the most interesting finding your study is the fact experience of gas more than one hour was connected with elevated blood pressure and pulse.”
Dr Chuang explained that, however the effect of essential oils on stress reduction has become extensively recorded, epidemiological reports have reported a connection between VOCs and cardiopulmonary effects – asthma among hairdressers, for instance. Studies by Chuang’s own group in Taiwan have already shown that experience of VOCs for more than 1 hour in hair salons may result in increased serum amounts of C-reactive protein (a marker of inflammation) and 8-OHdG (a marker of oxidative stress). Overexposure to essential oils, he suggested, may in such ways be unhealthy for cardiovascular health in young, healthy subjects.
He also noted the opinion with the American Heart Association on pollution inside growth of cardiovascular disease. This acknowledges the direct results of the actual environment about the lung and circulatory system through neural and central mechanisms to cause a systemic inflammatory response. “These potential biological processes can be put on the adverse effects of VOC exposure on cardiovascular health, although truth be told there is no proof accessible for this hypothesis,” said Dr Chuang.
The abstract of this article is as following.
Background: Aromatherapy is widely used around the world for stress relief. Whether exposure to essential oil increases the risk of cardiovascular events is still unknown. The purpose of this study was to investigate the effect of essential oil on heart rate and blood pressure among solus por aqua (spa) workers.
Methods: We recruited 100 healthy workers from various spa centres in Taipei, Taiwan. Between July and August of 2010, three repeated measurements – resting heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) – were taken of each spa worker in our study room. Participants were exposed to essential oil vapour generated from an ultrasonic atomizer in the study room for two consecutive hours. The total volatile organic compound (VOC) level in the study room was measured during the study period. We used a linear mixed-effect model to determine the association between the total VOC level and the participants’ HR, SBP, and DBP.
Results: For the times from 15 to 60 min after start of exposure, we found that the VOC level was significantly associated with reduced 15-min mean BP and HR. After exposure for more than 1 hour, from 75 to 120 min after start of exposure, we found that the VOC levels were associated with increased 15-min mean BP and HR.
Conclusions: Exposure to essential oil for 1 hour was found to be an effective method of relaxation, as indicated by decreases in the HR and BP. Prolonged exposure for longer than 1 hour to essential oils may be harmful to cardiovascular health among spa workers.
Read full article here.
Source: European Society of Cardiology
Chuang K-J, Chen H-W, Liu I-J, et al. The effect of essential oil on heart rate and blood pressure among solus por aqua workers. Eur J Prevent Cardiol 2012; DOI: 10.1177/2047487312469474
Copyright 2012 Medimoon.com. All rights reserved. No part of this site can be reproduced without our written permission.