Once the Olfactory receptors identify an aroma, nerve cells relay this information directly to the Limbic system of the brain. Here, aromas can trigger memories and influence behavior. Additionally, the Limbic system works in conjunction with the pituitary gland and the Hypothalamus region of the brain to regulate the hormonal activities thus triggering the production of hormones that govern appetite, body temperature, insulin production, overall metabolism, stress levels, sex drive, and conscious thought and reactions. The Limbic system also influences immunity. Essential oils can have a positive affect on all these functions.
Essential oils work through the skin as well.
They can stimulate surface skin cells, calm inflamed or irritated skin, release muscle spasms, soothe sore muscles and relieve muscle tension. Essential oils are used in a variety of ways. You can inhale them directly from the bottle. You can use them for skin care, hair care, and body care, as well as, for many beauty purposes. Personal hygiene, aromatherapy baths, foot baths.