Our sense of smell is directly wired to the brain’s centers of memory and emotion. Cells inside the nose detect smells in our environment, and send information to the brain, via the olfactory nerve. (We also have a cluster of cells the top of the throat that detect scents from the food we consume, and pass that information along the same olfactory channel to the brain.) The information about smell does immediately to the limbic system of the brain, which includes regions like the amygdala that control emotional reactions and memory.  

While some of the causes of sleep disorders cannot be controlled or mitigated by essential oils, the soothing and relaxing qualities of these oils can help calm the body and mind, making it easier for people to find restful sleep. This is due to the sedative, anxiolytic, anti-depressant, soothing, warming, anti-inflammatory, and analgesic properties of these essential oils.
Another thing I learned was about the whole “therapeutic” thing. I always thought that when an oil company claimed that their oil was “therapeutic grade” it meant that it could be used medicinal purposes, not just for aromatherapy purposes. I’m sure that’s true, but from what you, the article I just read, and other EO experts are saying, that isn’t true. Pure essential oils can be used for their “therapeutic” or medicinal qualities just like they can be used in aromatherapy. The term “therapeutic grade” means nothing. Eden’s Organic oils say 100% Pure Essential Oils on their bottles, but I think somewhere on their site it says therapeutic grade. I’m assuming many small companies like theirs are having to claim this in order to keep up with the bigger companies, whether it’s true or not. Either way, it doesn’t matter to me, but I did take that wording out of this post so that it’s more accurate!
It’s worth it to have a high quality diffuser to diffuse essential oils. This Smiley Daisy Essential Oil Diffuser, Quite Cool Mist Humidifier, 350 ml has been around for a long while and has great reviews. Smiley Daisy is a cold air diffuser, as well as a humidifier, which is great because it releases moisture into the air and is helpful in providing relief for dry skin, dry throat and cold and flu symptoms such as irritated nasal passages and more. Order below:
×