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Experts believe aromatherapy activates areas in the nose associated with smell receptors, these receptors send messages through your nervous system to your brain.
The oils may have the ability to activate certain areas of your brain, like your limbic system, which contributes to emotions. Essential oil diffusion can also have an impact on your hypothalamus, which may respond to the oil by creating feel-good brain chemicals like serotonin.
Essential oils have been used for decades to reduce stress, anxiety and assist with other corporial and emotional distress and dysregulation.