The sense of smell is closely linked with memory, probably more so than any of our other senses. Those with full olfactory function may be able to think of smells that evoke particular memories; the scent of an orchard in blossom conjuring up recollections of a childhood picnic, for example. This can often happen spontaneously, with a smell acting as a trigger in recalling a long-forgotten event or experience.
In addition to being the sense most closely linked to memory, smell is also highly emotive. The perfume industry is built around this connection, with perfumers developing fragrances that seek to convey a vast array of emotions and feelings; from desire to power, vitality to relaxation.
Here are 7 ways to enhance your sense of smell according to City Health
- Pay more attention to what you already smell. ...
- Note how certain smells make you feel. ...
- Avoid foods that cause excess mucus production. ...
- Avoid substances that can impair your sense of smell. ...
- Get more zinc in your diet. ...
- Exercise.
- Use a humidifier....
It is likely that much of our emotional response to smell is governed by association, something which is worn out by the fact that different people can have completely different perceptions of the same smell. Take perfume for example; one person may find a particular brand ‘powerful’, ‘aromatic’ and ‘heady’, with another describing it as ‘overpowering’, ‘sickly’ and ‘nauseating’. This concept makes one wonder about their own "scent perception" and what kind of impact it may have on us daily.
ref: https://www.fifthsense.org.uk/psychology-and-smell/