Introduction As temperatures drop and the cold weather sets in, the winter season presents a host of health challenges, particularly concerning the immune system. The combination of colder temperatures, reduced sunlight, and increased indoor crowding can weaken immunity, making individuals more susceptible to illnesses such as the flu, common colds, and other respiratory infections.   Following are some of the seasonal health concerns: Increased Susceptibility to Respiratory Illnesses Cold Weather and Respiratory Infections Flu and Common Colds: Exploring how colder temperatures and indoor crowding facilitate the spread of viruses, leading to increased cases of influenza and common colds. Respiratory Syncytial…