When we smell something, the olfactory nerve sends signals directly to our limbic system and amygdala, the parts of our brain responsible for our mood and memory. It, therefore, makes good sense that certain aromas may be able to ease our anxieties and aid in our sleep [1]. However, the reality is that there is still a paucity of research in this area of medical science and that essential oils are promoted as supplements, which means that the quality control may be lacking in certain companies and products.
Peppermint oil is one of the essential oils. It is used to treat sore muscles and cramps, and aid digestion and ease congestion [2]. Thought to open up airways, it may thus have a role in relieving nasal congestion. If your poor sleep is due to nasal congestion, then it may have a role in helping you with your sleep. The downside is that in some individuals it may have some energizing effects and is sometimes used a scented wake-up call. Energising oils include powerful scents like grapefruit and peppermint.
Other essential oils that may have a role in managing insomnia would be chamomile oil and lavender oil. You can experience the aromatic effects of these essential oils in a number of ways. For example, you can rub it on your sole or wrists with a carrier blend, or drop into a diffuser.
Before applying an essential oil onto your skin, do make it a point to dilute the essential oil with a carrier oil. Applying undiluted essential oils to human skin may cause irritation [3]. Common carrier oils include coconut and extra virgin olive oils. It is recommended that a person use one teaspoon of carrier oil for every one drop of essential oil.
Some individuals use essential oils by adding 2-3 drops of these oils to a diffuser. This will release the scent into the house.
Of crucial importance is the need to treat essential oils with caution. Before applying these oils over large areas of skin, be sure to do a patch test. Many persons will choose the inside of the arm to do a patch test. This can prevent undue irritation and inflammation.
Lastly, it is important to note that essential oils are not meant to be ingested as they can cause tummy upset, nausea and vomiting.
References:
1. Sowndhararajan K, Kim S. Influence of Fragrances on Human Psychophysiological Activity: With Special Reference to Human Electroencephalographic Response. Scientia Pharmaceutica.
2. Peppermint Oil | NCCIH. NCCIH.
3. Essential oils – Health warning. Wa.gov.au.
