One has to wonder whether it is the physical symptom, in the case of the article the loss of the sense of smell, that is the cause of the depression or is it the other way around?

Another interesting point that the article brings up and is directly related to psychology is the idea that smells can influence mood. Gong farther than aromatherapy, advertisers and apparently even banks, have begun to use "smell marketing" to influence customers to buy more or invest more by sprinkling their office with the appropriate scents. This could be similar to subliminal advertising that was used a few decades ago. Our subconscious relates the smell to an experience of say trust, and without consciously being aware of it we trust this financial advisor with more of our portfolios than we originally intended. The unconscious is certainly at work on a more biological level, but it...
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