Essential oils are most commonly used in the practice of aromatherapy, in which they are inhaled through various methods.
Essential oils are not meant to be swallowed.
The chemicals in essential oils can interact with your body in several ways.
It’s thought that certain application methods can improve absorption, such as applying with heat or to different areas of the body. However, research in this area is lacking (3Trusted Source, 4Trusted Source).
Inhaling the aromas from essential oils can stimulate areas of your limbic system, which is a part of your brain that plays a role in emotions, behaviors, sense of smell, and long-term memory (5Trusted Source).
The limbic system also plays a role in controlling several unconscious physiological functions, such as breathing, heart rate, and blood pressure. As such, some people claim that essential oils can exert a physical effect on your body.
However, this has yet to be confirmed in studies.
Summary Essential oils can be inhaled or diluted and applied to the skin. They may stimulate your sense of smell or have medicinal effects when absorbed.
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