Smell is the sense that allows us to smell certain substances. When the smell of an object reaches our nose, what happens is that the molecules of that object detach and we inhale them.entering our nasal cavities.
There, millions of olfactory cells allow us to identify thousands of different smells. These nerve cells are located at the top of the inside of the nose and are directly connected to the brain.all this according to the content of the publication Vital Health.
“Smell is also influenced by nerve endings in our eyes, nose, mouth and throat.”
A world without smell
Sometimes, following a virus, the flu, or a blow to the head, your sense of smell can play tricks on you. Suddenly, the smells are confused and we understand them badly. It is the well known parosmia and consists of smells that once seemed pleasant to us can now disgust us.
It can also happen that the sense of smell simply diminishes. We then speak of hyposmia.
When the smell is completely lost things are much worse. This disease is called anosmia and, sometimes, it is a symptom that we suffer from another more serious disease, such as rhinitis, a deviated nasal septum or even a tumor.
However, most of the time, the loss of sense of smell is only a consequence of age. From the age of 60 this sense diminishes.
Other factors involved
The Genoa they play an important role in whether our sense of smell is more or less sensitive, but there are other causes that can affect:
- Diseases such as Parkinson’s or Alzheimer’s.
- A head injury.
- Diabetes and hypertension.
- The presence of polyps in the nasal cavities.
- Hormonal disorders.
- Dental problems.
- Exposure to certain chemicals such as insecticides.
- Take certain medications.
- Undergoing radiotherapy treatment.
- Being a smoker
- A virus like Covid-19.