Scientific research has proven that the sense of smell affects mood. This is easy to understand because all aromas are processed by the same part of the brain responsible for memory and emotions. The scientific term for this is phenomenon is called Aroma - Chology®. This term was first coined in 1989 by what is now the Sense of Smell Institute, a division of The Fragrance Foundation.

According to the Sense of Smell Institute, Aroma-Chology® is concerned specifically with the temporary positive effects of aromas on human behavior and emotions to improve mood and enhance quality of life.