It's the first sense you use when you're born.

One out of every fifty of your genes is dedicated to it.

It must be important, right?

Okay, take a deep breath through your nose.

It's your sense of smel

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Perfumers can learn to distinguish individual odors

in a fragrance made of hundreds of scents.

Tea experts have been known to sniff out

not just the location where a tea was from,

but the season of h

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