👉 Infection, particularly viral infections, is a seasonal phenomenon influenced by various environmental and behavioral factors. Typically, respiratory infections like influenza (the flu) and common colds peak during the fall and winter months in temperate regions. This is largely due to colder temperatures and lower humidity, which can dry out mucous membranes, making them more susceptible to viral entry. Additionally, people tend to spend more time indoors in close proximity, facilitating the spread of pathogens. Humidity levels drop, allowing viruses to survive longer and travel more easily through the air. Seasonal changes also affect immune function; for instance, lower vitamin D levels during winter can weaken the immune system, making individuals more vulnerable to infections. Understanding these patterns helps in preparing for and mitigating the impact of seasonal outbreaks.