Reported by the Huffington Post, a number of Taiwanese researchers reveal that the positive effects of aromatherapy turned 180 degrees in the long-term use.
Inhalation aromatherapy was immediately able to help relax and lower blood pressure. However, the positive effect it slowly disappeared and it stimulates the negative effects after inhaling over an hour.
"Exposure during the first hour aromatherapy is relax, but after that it tends to lead to increased blood pressure and heart rate, " said Dr. Kai - Jen Chuang, author Stusi of Taipei Medical University, Taiwan.
The study, published in the European Journal of Preventive Cardiology involves approximately 100 male and female participants with categories : young, healthy, and working at the spa. Once a week for three weeks, researchers asked participants inhaling aromatherapy for two hours while monitoring blood pressure and heart rate.
In each session, participants are likely to experience a decrease in blood pressure and heart rhythm after inhaling aromatherapy for 15-60 minutes. However, soon began to rise again when the time stepping 75-120 minutes.
"Exposure aromatherapy too long over an hour actually endanger vulnerable cardiovascular health is Become an important warning in the spa workers," says the researcher.