> The traditional theory is that a cold can be "caught" by prolonged exposure to cold weather such as rain or winter conditions, which is how the disease got its name.[40] Some of the viruses that cause the common colds are seasonal, occurring more frequently during cold or wet weather.[41] The reason for the seasonality has not been conclusively determined.[42] Possible explanations may include cold temperature-induced changes in the respiratory system,[43] decreased immune response,[44] and low humidity causing an increase in viral transmission rates, perhaps due to dry air allowing small…