Humans have a surprisingly good sense of smell and can distinguish a wide range of odours. Here are five facts you may not know about Odour:
In order for a human to perceive a smell it has to meet 3 criteria –it has to be released into the air, it must be able to be dissolved into your olfactory mucus, you must possess a receptor cell available to detect it.
Dogs have a superior sense of smell when compared to humans, to highlight this if you make an analogy to vision what you and I can see at 1/3 of a mile, a dog can see 3000 miles.
Odour is very complex and can be described as combinations of odorous compounds, imagine a keyboard with 350 keys each key being an odorous compound and imagine how many tunes can be played.
Baked bread is often considered the “Best” smell, and yet some people don’t like it! The reason for this may be down to a “negative” memory response which relates to an accident in their own kitchen, equally, there are some people who like the smell of compounds which many would consider offensive.
Human Olfactory receptor cells replenish every 30 to 60 days
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