"Ancient Egyptians recognized the physical and spiritual properties of these oils and used them in their daily lives. Egyptians used oils in their mummification procedures and over time they became aware of the healing properties of many of these oils. The priests became "healers" mixing and prescribing medicinal potions. During the fifteenth century people in Europe began using essential oils to disguise their body odors and to ward off sickness."
In Part III you will find in-depth information about the captivating experience of aromas and how they are recognized. Chances are you have been exposed to an aromatic product that contained pure essential oil without even realizing it!Reference: Vanderbilt University, Department of Psychology