What is Smell? – Fifth Sense
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What actually is smell? Have you ever thought about it? Imagine trying to describe the smell of a rose to someone who has never possessed the ability to detect odours.  How would you do it?

Olfactory experiences are very difficult to describe even to people who have no olfactory problems. Smell is a very rarefied, esoteric experience. The dominance of vision in humans has greatly relegated our sense of smell and, even if it ever had a vocabulary, this is now long lost. The best we can do to describe a smell is to say that it is “like” or probably “a bit like” another smell. It is at least as difficult to imagine trying to describe the look of a rose to someone who has been blind since birth.

And for those of us with full olfactory ability – have you ever considered what it might be like to be suddenly deprived of your own sense of smell, and what effect that might have on life?

How smell works

How smell works

So how does the scent given off by a flower, or the food that you are eating, reach the brain and become what we know as a smell?

Danger!

Danger!

Our sense of smell doesn’t just bring us pleasure or disgust (depending on what it is detecting!) – it also acts as a warning system.

Psychology & Smell

Psychology & Smell

Our sense of smell has a profound impact on our mood, memory and emotion.

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