The scent of an essential oil impacts the brain through the olfactory system. When a fragrance is inhaled, the odor molecules travel up the nose, and are trapped by olfactory membranes. These membranes contain approximately 800 million nerve endings, which receive the micro-fine, vaporized oil particles. They are carried along the axon of the nerve fibers and connected with the secondary neurons in the olfactory bulb in the brain.
The olfactory bulb then transmits the impulses to the limbic system. The limbic system is directly connected to areas of the brain that control heart rate, blood pressure, breathing, memory, stress levels and hormone balance. Thousands of scientific studies have shown that essential oils have profound physiological and psychological effects.
Topical application of essential oils are directly absorbed into the bloodstream. Do not use while pregnant, nursing, or have epilepsy unless your physician has advised you otherwise. If you have had a history of health problems, consult your physician before use.