Appling GM(0,N) in the ranking of aromatherapy by using heart chakra essential oils

The human body has seven chakras and the application of seven essential oil blends to beauty aromatherapy massage in preventive health care has become very popular in Taiwan. However, there is no study confirming the physiological role of diastolic pressure of each chakras essential oil. Hence, the aim of this paper is to analyze the effect of the heart chakras essential oil blends for the subjects being middle-aged females with a lot of pressure. Here, the experimental method includes massage and direct sniffing. There are 30 examinees, including females who are above 30 years old and the pressure value is above 50. The research will observe examinees´ heart rate variability and the physiological changes (observing the relaxation effect) in the body by the use of heart chakra. By measuring the heart rate variability, the physiological changes in the body before and after the aromatherapy are analyzed. Through the GM(0,N) in the grey system theory, the results are obtained that the heart chakras essential oil not only can get the best pressure-improvement result, but also can improve the overall activity of the autonomic nervous system. Hence, the result can be also provided as a reference in the use of the beauty aromatherapy.