How do we Know that Scents are Safe? Part 3

We have covered a lot of ground on this topic and have discussed “gray areas” that require our personal judgment be exercised.  Here is one more for you to consider.

More and more people expect that any “smell experience” that they might have encountered should be able to be reprised.  We get into areas where simply identifying the chemistries that define the smell and then re-assembling them may not be prudent.  A recent blog, seen here and not authored by me, addressed the smell of a rain storm and is a case in point.  Many classes of compounds that are created when a rain storm arrives were categorized.  All in all, thousands if not many, many times that number were bundled into three categories: ozone (and effects); petrichor (natural and not natural origin ingredients found on the ground and on pavement, etc.); and geosmin (mostly natural-origin materials deriving from flora and fauna directly or indirectly and associated with “dirt” = earth).  However, the collateral Continue reading

Learning in your sleep?

Wouldn’t it be nice to be able to sleep the day away and learn what you need to while you are in deep slumber? Teaching verbal information so far has not been much of a success, according to the Weizmann Institute of Science inn Israel. Scent and sound associations however seem more promising. As the New Scientist reports, “While subjects slept, the team played different sounds, each followed by the release of a specific aroma. Just as they would when awake, the sleeping subjects took deeper sniffs in response to pleasant scents and shallower sniffs in response to unpleasant scents.”

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Storm Scents

Ever smelled a storm before it happened? Smelled the rain before it actually rained? A team of researchers took those aromas and deciphered their meaning. It’s true that someone with a sensitive nose can smell the rain before the drops fall down because the atmosphere actually lets out distinctive odors. These scents are even stronger when it rains after a long dry spell. So what does a storm smell like exactly? Continue reading