The Evolution of Aromatherapy
The therapeutic application of aromatic herbs and flowers is a prehistoric practice dating over 5000 years, seen across every major civilisation, including the ancient Egyptians and Greeks.
However, the term “aromatherapy” was coined by Rene Maurice Gattefosse, a French chemist.
Having burned his hand experimenting with cosmetics, Gattefosse put his hand in the nearest tub of liquid, which happened to be a vat of lavender essential oil. He was surprised by how quickly his hand healed and began documenting various essential oils’ healing and antiseptic properties.
Gattefosse worked throughout the first World War and used essential oils to experiment on and heal soldiers. In 1928, he published his observations in a scientific paper, and the term “aromatherapy” was coined in this paper.
Extracting the Essence
There are different methods of extracting essential oil from herbs and flowers, but the best practices include steam distillation and carbon dioxide extraction.
Flowers that contain oil can also be processed with solvents such as hexane, acetone, toluene and petroleum ether. However, chemical solvents during extraction may cause adverse side effects such as headaches and allergies and may even have carcinogenic effects.
Smell Fires Memory
Our ability to smell is a crucial part of our senses, directly connected to our memories and emotions. The olfactory bulb, which processes smell, is situated in the front part of our brains and is in charge of sending information to other areas of the brain.
As a result, smells travel fast through the limbic system, including the amygdala and the hippocampus, areas of our brain responsible for processing emotions and memories.