The human nose is sensitive enough to detect the scent of a molecule diluted by ten billion air molecules. Even the aromas too subtle to be noticed by the human nose have shown to affect the physical and mental functions of the body.
Therefore, it is no surprise that studies show that the fastest way to affect mood and behavior is the sense of smell. Aromas signals provide the best memory because the more emotionally charged and older memories are linked to odors.
Essential oils are very effective remedies, as are small molecule compounds which are able to seep through the skin and into the blood and through the cell walls. These oils contain a variety of substances including hormones, vitamins and antibiotics healing.
In aromatherapy, essential oils molecules diffuse into the air and smelled, inhaled, ingested or absorbed by the body. Here they act as a messenger to the brain where the limbic system affect. The limbic system is a ‘box’ that is directly linked to the brain centers that control blood pressure, respiration, heart rate, hormone levels and the nervous system. This helps to cause physical, emotional and mental changes in the body.
Different essential oils contain medicinal properties that vary and affect different ailments. For example, oils of lavender, lemon, bergamot, thyme, chamomile, pine and sandalwood stimulate the production of white blood cells that fight infection in the blood. Others, such as citrus and pine, have valuable antiviral components due to terpenoids containing compounds.
A group of essential oils has a calm soothing effect, effect impart a sense of well-being; another is stimulating and energizing for increased mental capacity. Recent studies have shown that aromatherapy can be used to improve mood and increase awareness of Alzheimer’s patients and other patients with memory problems.