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How do smells affect brain chemistry and mood?

MedExpress Team

Medexpress

Published Jan. 15, 2025 12:04

How do smells affect brain chemistry and mood? - Header image
Fot. Getty Images/iStockphoto
Scents have extraordinary power to influence our emotions, mood and well-being. Scientists have long studied how they affect the nervous system, particularly the neurotransmitters responsible for our emotions. What's more, properly chosen scents can act as a natural antidote to stress and improve quality of life.

Odors vs. neurotransmitters

Our reactions to smells are not random. The sense of smell connects directly to the limbic system - the center of emotion in the brain. Key neurochemical processes depend on what aromas we perceive:

  • Lavender and bergamot: Stimulate the production of serotonin and dopamine - the hormones of happiness. Their effects are comparable to natural antidepressants.
  • Orange and rose: Lower levels of cortisol, the stress hormone, leading to feelings of relief and relaxation.
  • Ylang-ylang: Enhances the action of the neurotransmitter GABA, responsible for relaxation and...

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