News JVTech Science just discovered how we catch cold
Published on 01/01/2023 at 15:15
A recent study just proved many doctors wrong who saw no physical link between the cold and getting sick with decreased immunity. Beyond external causes, “catching cold” was only an expression.
One less preconceived idea about the cold
A
study
published on December 5 just demonstrated that the body’s natural immunity could decrease with lower temperatures. Once confined to the phrase “catching cold”, there seems to be a great deal of truth to it.
This would be an antiviral mechanism that would become less effective as the temperature drops. This study thus contradicts years of beliefs in which only external reasons explain the peak of illness during the winter season.
Previously the two viral risk factors were that with the cold we find ourselves much more in closed places, that we ventilate much less. As a result, we create a pool of bacteria and viruses that spread much more easily. The second factor is that many viruses are more resistant to cold.
Yes it seems that we “catch cold”
In the study the scientists sampled human nasal mucosa tissue. By taking pieces of 5 mm by 5 mm, then putting them in culture, they were able to experiment on them. By immersing them in a solution for 24 hours at 37°C and 32°C, the results were very different. In one case the immune response was normal, while with a lower temperature the response was less.
We thus learn that when the nose is exposed to a virus or bacteria, micro balls that could be described as soldiers protect the air inlet. It is for this reason that it is recommended to inhale through the nose and not through the mouth.
This discovery is thus complementary to the two previous ones in explaining the resurgence of the disease in winter. In the future, we will thus be able to rely on these three factors to explain the development of an epidemic.
This could thus help to better deal with the epidemiological crises that we experience each year during the winter period.
