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Role of smelling


Smelling is a set of perceived senses of the chemical compounds around us. The most important role of smell is to make us aware of the dangers of toxic gases and rotten foods, as well as the desire for useful foods. In addition to being an important warning system for safety issues and regulating food intake, the sense of smell also plays an important role in social communication. Studies of patients show the consequences of the olfactory decline in all aspects of their lives. Clinical trials show the low quality of life, depression, mood swings, vulnerabilities, and problems in daily life, even reduced social interactions and decreased sexual intercourse with these patients. These people are constantly concerned about safety issues (such as fire and leakage Gas) and poor personal hygiene.

One of the negative consequences of olfactory decline is its effect on nutrition. Decreased appetite, changes in dietary interests, changes in body weight, problems with cooking, and not recognizing spoiled foods are among the common complaints of these patients. Bodyweight change may be reduced or increased; Weight gain is due to consuming large amounts of food to compensate for the reduced taste.
Aromas do not have a direct effect on human behavior and health; But depending on whether they are enjoyable or not, they have positive and negative consequences on human mood, behavior, and health. Industrial wastewater or animal waste, which causes foul odors in nearby residential areas, is an example of the negative impact of odors on quality of life.

Sense of smell or sense of taste?

Have you ever wondered which of these two senses will stay with us for the rest of our lives? A good smell can transmit a good feeling, while the opposite is true that a bad smell also transmits a bad feeling. In some cases, the transfer of a sensor indicates a direct relationship between the sense of smell and taste.

What exactly is “Smelling”

When you breathe in, you inhale air molecules through your nostrils. The olfactory nerve at the end of the nose is a piece of skin tissue. These nerves are the main cause of odor sensation. When an odor molecule is inhaled, it gets stuck in the mucous layer that covers the olfactory nerve. At the same time, the message is sent to the brain through the olfactory nerve. You recognize the smell. The sense of smell may disappear sometimes permanently and sometimes temporarily.

Causes of olfactory disorders

  1. Anosmia is the complete loss of the sense of smell, or the inability to recognize any sense of quality.
  2. Parosemia is an injury or misinterpretation of the sense of smell, the sensation of an unpleasant odor in the absence of a bad odor, or in the presence of a naturally pleasant odor.
  3. Hypoxemia is a decrease in the sense of smell. It is an increased sensitivity to all odors.

Factors affecting the loss of sense of smell

1- Nasal congestion caused by (cold, upper respiratory infection, allergies, sinus infections, and low air quality ) are the most common causes of lack of sense of smell or the sense of smell.

2. Other causes of lack of sense of smell include certain medical conditions such as obesity, diabetes, high blood pressure, Alzheimer’s disease, Parkinson’s disease, MS, nutritional problems, dental problems, congenital conditions, and hormonal disorders.

  1. Beyond migraines, there may be changes in the sense of smell, taste, and touch.

4- Odor is a sensation that becomes weaker and weaker over time and with age. According to the findings of the latest research, most people are better at recognizing the taste of food than recognizing its smell. It is noteworthy that the olfactory capacity of people decreases with age.

5- Taking some drugs such as ( antibiotics, antidepressants, anti – inflammatory drugs, heart drugs, etc.)
Nasal polyps – A small non – cancerous growth in the nose and sinuses that blocks the nasal passages.
Exposure to toxic chemicals such as pesticides or solvents
8- Damage to the nose and olfactory nerves due to surgery or head injury
9- Also Radiation therapy for head and neck cancer

  1. Cocaine abuse.
  2. And of course Coronavirus.

Treatment of smelling disorders

In fact, the treatment of olfactory disorders depends entirely on the exact diagnosis of the cause. The treatment of functional disorders, sensory – neurological, olfactory, is much more difficult than the treatment of conduction disorders. If the underlying diseases are causing the smelling disorder. It usually returns when the disease is gone or with the treatment of the sense of smell.

If nasal congestion due to an allergy or cold is the cause of a lack of sense of smell, you usually don’t need treatment and the problem will get better. Short – term use of nasal decongestants may open the nasal passages so that you can breathe more easily. However, if your nasal congestion gets worse or does not go away after a few days, see your doctor. Therefore you may have an infection and need antibiotics or other medical conditions. If the person has a polyp, he or she can solve this problem with nasal surgery. It is only with age that the problem of the sense of smell will not be solved volume.

In addition, don’t forget Vitamin B groups and zinc can help your smelling problem after Covid 19.

By roya

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