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Why are respiratory diseases more frequent in winter?
Release Time:2024-01-09

Respiratory viruses like COVID-19 and influenza are more common during colder months, and this is not solely due to increased indoor activities. Researchers believe that humidity is another contributing factor.


Researchers explain that higher humidity levels in warmer months cause the droplets released when we speak, cough, or sneeze to be larger. These larger droplets quickly fall to the ground due to their size. However, in winter when the air is drier, these droplets containing viruses can remain suspended in the air for longer periods and travel greater distances.


Furthermore, during winter months, a person's immune system may not function as effectively. Cilia, the small hairlike projections in the upper respiratory tract responsible for removing foreign material out of the nose, do not work as well in cooler temperatures and lower humidity. Consequently, viruses can persist in the upper respiratory tract for longer durations.


So, how can we prevent these viruses during winter?



Remember, these preventive measures work best when combined. Stay informed about the latest guidelines from healthcare authorities and adapt your habits accordingly to protect yourself and others from respiratory viruses.

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