Subscribe to one of our news e-mail lists . Hirsch and his colleagues have studied aromatherapy for 15 years. They have concluded that specific odors can change your mood and behavior. This process depends on conveying odoriferous particles through air or in water, then a complex mental reaction.
Green apples tend to reduce migraine headaches.
These things are all correlates of changes in mood and emotion. Accuracy of a memory is not affected by the type of sensory cue, for example, whether it is olfactory or auditory. Instead, a memory that is triggered by an odor is experienced as being more emotionally intense and evocative than a memory triggered by any other type of sensory cue. Research has also shown odors help people remember. Although some aromas are so subtle they don t register consciously, the nose and brain can detect 10,000 or more different odors.