Let’s talk about Aromatherapy and the Autonomic Nervous System
The Autonomic Nervous System is the part of our bodies that controls many of our processes and behaviors. Store Manager Rachel Jennings takes this topic into bite size pieces for our readers.
The nervous system is getting a lot of attention lately, especially with new scientific discoveries being made nearly every day. People are beginning to understand the connection between this incredible and complex body system and its relationship to the anxiety and stress that we feel as symptoms of living in an ever-evolving world.
This month, we discovered a research article that details the effects Fir essential oil has on middle-aged women’s autonomic nervous systems via short term inhalation.
To better understand, it helps to break down the nervous system into subsystems. The nervous system includes the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is made up of the brain and spinal cord, whereas the PNS is made up of many, many nerves that connect the brain to your internal organs, and can be broken down into the somatic and autonomic nervous systems. The name of the Autonomic Nervous System is useful for remembering its function: it controls the automatic functions of your body that you need to survive. These are processes you don’t think about and that your brain manages while you’re awake or asleep, like digestion, breathing, heart rate, and blood pressure. On the other hand, the Somatic nervous system relates to the senses, and includes the muscles you can control, plus all the nerves throughout your body that carry information from your senses. That sensory information includes sound, smell, taste and touch. Vision doesn’t fall under this system because the parts of your eyes that manage your sight are a part of your brain, and therefore a part of your Central Nervous System.
Finally, the Autonomic Nervous System can be broken down into 2 divisions: the Sympathetic Nervous System, which is responsible for your body’s “fight-or-flight” response, and the Parasympathetic Nervous System, which is responsible for the “rest-and-digest” body processes.
With this basis of understanding, the study went on to discuss the effects of Fir essential oil, also known as Needle Fir or Manchurian Fir (Abies Holophylla), on autonomic nerve activity in middle aged women. To be clear, they analyzed the data of chemical constituents naturally found in Fir essential oil - the main 3 compounds being alpha-pinene, followed by camphene, and limonene, which are commonly found in many medicinal plants and essential oils. They found that inhaling essential oils that have a high alpha-pinene content increased, or activated, parasympathetic nerve activity and decreased heart rate, contributing to physiological relaxation. When participants filled out their study’s clinical questionnaires, it was found that inhaling Fir essential oil (and Hinoki Cypress: another oil with similar chemical composition) increased feelings of “comfortable,” “natural,” and “relaxed,” as well as a correlated decrease of negative moods and an increase of positive moods.
These results emphasize the potential of aromatherapy as a complementary and alternative medicinal approach to stress management, especially given its relatively short duration of action for inducing physiological and psychological relaxation. The study suggested further research studies to be conducted on the various species such as pine, cypress, and oak, to investigate their efficacy as well. In summary, this study reported that the inhalation of fir essential oil for a short period (1) significantly enhanced parasympathetic nerve activity, (2) marginally decreased sympathetic nerve activity, and (3) improved mood, comfort, relaxation, and natural feeling.
In conclusion, inhalation of fir essential oil can help menopausal women in their physiological and psychological relaxation.
To read the study, click here