Mental Acuity
As early as 1992, scientists in Vienna (Nasel, et al, 1992) produced credible research that inhaling the volatile aromas of certain essential oils (Vetiver, Patchouli, Cedarwood, Sandalwood and Frankincense) resulted in a significant increase (up to 28%) in blood flow to the brain, resulting in increased oxygen levels and enabling higher brain function. 1
Shimizu, the 3rd largest construction company in Japan, now incorporates an ‘Aroma Generation System’ into the air-conditioning of new offices and hospitals. They tailor-make aromas to their clients’ needs, with over 20 standard aromas in their inventory. This was all based on research done by Takasago, one of Japan’s largest fragrance manufacturers, which found that workers operating computers and word processors made 54% fewer errors when the air was diffused with lemon; 33% fewer errors with jasmine and 20% fewer errors with lavender.2
More recent research (2008) has shown that inhaling essential oil aromas can both lower reaction times and help maintain high concentration during long-term tasks.3
- C. Nasel, B. Nasel, P. Samec, E. Schindler, G. Buchbauer, “Functional imaging of effects of fragrances on the human brain after prolonged inhalation,” Chemical Senses 19:359-364, 1994
- Worwood, V., Complete Book of Essential Oils & Aromatherapy, New World Library, Novato, California, 1992, p.70.
- Shimizu K, et al, “Essential oil of lavender inhibited decreased attention during a long-term task in humans,” Biosci Biotechnol Biochem, 2008 Jul;72(7);1944-7, Epub 2008 Jul 7.
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