Odor Fatigue

Written by Science Knowledge on 1:17 AM

Your brain quickly adapts to new smells. What smells pungently strong on the first sniff becomes almost undetectable a few minutes later. This phenomenon, called odor fatigue, is similar to the way the hum of an air conditioner fades into background noise, but odor fatigue is more powerful. That’s because once you lose track of a smell, you can’t will yourself to get it back—at least not without first leaving the room and smelling something else.

Odor fatigue makes perfect sense when you consider the evolutionary role of smell. Your body is more interested in using smell to detect things than it is in keeping track of them. Once you notice a smell and decide how you want to react, it’s time to move on so you can detect the next potentially important odor.

Now that you understand how odor fatigue lets you ignore prolonged smells, there are a few practical bits of advice to consider:

• To determine if an object or room in your house smells, start by walking out the door and giving your nose a break. Then step back inside and pay attention.

• To determine if you have body-odor issues, you’ll need the help of a friend who can sniff you out.

• Just because you can ignore a smell doesn’t mean you should. Irritants and even toxins, ranging from cleaning products to cigarette smoke, are easy to ignore if you live with them, but they might not be so easy on your lungs. If in doubt, open a window and get some fresh air.

Source of Information : Oreilly - Your Body Missing Manual

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In its broadest sense, science (from the Latin scientia, meaning "knowledge") refers to any systematic knowledge or practice. In its more usual restricted sense, science refers to a system of acquiring knowledge based on scientific method, as well as to the organized body of knowledge gained through such research.

Fields of science are commonly classified along two major lines: natural sciences, which study natural phenomena (including biological life), and social sciences, which study human behavior and societies. These groupings are empirical sciences, which means the knowledge must be based on observable phenomena and capable of being experimented for its validity by other researchers working under the same conditions.


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