There are lots of reasons why somepeople have more acute senses of smell than others. For me it is "self defense" for lack of a better term. I have become more aware of all odors around me over the last few years for several reasons.
First, I have pretty severe allergies and didn't realize how deficient my sense of smell had become with the constant congestion. When the congestion was cleared with agressive allergy treatment, I could smell much more.
Second, when my sinuses cleared so that I could smell things again, I realized that just about every odor triggered my asthma. I have to be very aware of the odors around me in order to treat my asthma or leave a situation to avoid an attack. People who have odor triggered migraines are the same way. For us it is a learned defense mechanism.
I hope other chime in with other thoughts and explanations.
Hi, welcome to the forum, smell constitutes as one of the special senses in humans. It plays many role from identifying the substance (acceptable and toxic), as defense mechanism etc. The main component of smell system is receptors known as olfactory chemoreceptor cells, which are primary neurons that project directly to the brain. There will continuous formation of new receptors esp. in adulthood. They turnover reduces in advancing age.
The receptor formation and sensitivity varies from person to person. Hence, there can be difference in intensity of smell across the population. The main factor for such difference can be injury from infection, inflammation, and noxious chemical agents which causes early death of these receptors and also prevents formation of new receptors. In such cases, the intensity or ability to smell reduces over a time. I hope this information helps. Take care and regards.
Copyright 1994-2016MedHelp International.All rights reserved. MedHelp is a division of Aptus Health.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.