'Well, winter is coming; I will for sure get sick at least once!'
Who is guilty of having these types of thoughts when temperatures are starting to drop and snow appears on the ground? Winter season is of course known as cold or flu season. Some research has been done to explain the phenomenon without any precise or conclusive results but here are a few facts to take in consideration that might explain why cold and flu viruses are much more present during the long months of winter:
Lower temperatures favorable to virus stability
Immune system often weakened during winter temperatures
More frequent groups of people in closed spaces, which facilitates the transmission of the virus
Frequent temperature changes between cold and hot, which can affect the balance of the human body
Decrease in the number of hours of sunlight, which also affects the immune system