Why Do We Get Runny Noses and Sneezes When We Catch a Cold?

A runny nose and sneezing are some of the most common symptoms we experience when we catch a cold. While they may seem like mere nuisances, these responses are actually the result of our body’s complex immune reactions against viruses. So why exactly do these reactions occur, and what can we learn from them? In this post, we’ll explore the physiological reasons behind runny noses and sneezing during a cold, how the body defends itself, and practical tips to ease the symptoms in everyday life.       The Reality of a Cold: A Battle Between Virus and Immune System Most colds are caused by a virus known as rhinovirus. This virus enters through the respiratory tract and begins to multiply in the nose, throat, and upper airway. The body immediately activates an immune response, with white blood cells mobilizing and inflammation beginning. This inflammation is essentially a battle aimed at eliminating the virus. During this process, the mucous membranes...