Lavender in the Air: Evaluating the Calming Effects of Inhaled Lavender Oil

The study focuses on the effects of inhaling lavender essential oil (EO) to assess the physiological and psychological stress levels of university students. Pressures from society and academics have brought about the need for researchers to discern whether aromatherapy with lavender EO could be useful in alleviating anxiety. The study aimed to assess the heart rate (HR), heart rate variability (HRV), oxygen levels (OL), and blood pressure (BP) as measures to gauge anxiety, depression, and fatigue. Researchers aim to determine if the effects of the lavender EO will contribute to reducing stress and improving psychological well being.

Figure 1 shows how inhaling lavender EO affects heart rate, which was measured using a fingertip pulse oximeter and a blood pressure monitor. The study involved 18 university students exposed to either a control group (air spray) or lavender EO through an air diffuser for 5 minutes. The independent variable was the type of inhaled substance, while the dependent variable was the heart rate. The results showed that inhaling lavender essential oil significantly lowered heart rate. It went down from 85 bpm to 78 bpm (p<0.02) when measured with a blood pressure monitor, and 80 bpm to 76 bpm (p<0.03) with an oximeter, indicating that EO may reduce stress.

Figure 3 focuses on the effectiveness that lavender EO has on BP before and after the inhalation. By finding the significant difference in the BP levels, researchers aim to determine the reduction in the systolic and diastolic blood pressures. Inhalation of the lavender EO (independent variable) was found to reduce BP (dependent variable) as opposed to those sprayed with water (control variable). The study found that there was a reduction in BP after inhalation. Systolic BP was reduced from 112.9 mmHg to 104.5 mmHg and Diastolic BP from 72.1 mmHg to 66.3 mmHg. The study shows that lavender’s calming effects on the cardiovascular system helps with circulation and reduces strain on the heart, reducing the risk of cardiovascular disease.

Figure 4 shows how breathing in lavender EO affects worry levels and its impact on mental health. Anxiety was measured using a questionnaire with a 5-point Likert scale, where higher scores showed greater anxiety. The independent variable was the type of substance inhaled, and the dependent variable was the amount of anxiety measured. The constants were the room conditions, the length of time for exposure, and the method used for the study. The results showed a big decrease in stress. The average score in the control group was 3.7, but it dropped to 1.83 after inhaling lavender EO, which is a significant change (p<0.05). This suggests that EO could help reduce stress; help you feel calmer; and implement anxiety stress management.

This study shows that breathing in lavender essential oil can have important physical and mental health effects, highlighting its value as a natural way to reduce stress. Figure 1 showed that lavender essential oil reduces heart rate, and Figure 3 showed it also lowers blood pressure. Both results suggest that lavender creates a relaxation effect on the cardiovascular function. Figure 4 showed that it helped reduce stress levels, which is good for mental health. Together, these data support the potential use of lavender EO as a complementary tool for stress management. Future research should examine the long-term effects of using EOs; assess how different groups respond; and how it might work well with other relaxation techniques like mindfulness or music therapy. This will help clarify its importance in overall wellness practices.

Shahin, Suzan. (2024). Evaluation of the inhalation of lavender oil on physiological and

psychological effects: A pilot study. Journal of Phytology. 16. 133-136. 10.25081/jp.2024.v16.9083.