Describe Why smokers are more susceptible to respiratory infections then answer?

Smokers are more susceptible to respiratory infections because smoking damages the respiratory system, impairing the function of cilia, which help clear mucus and pathogens from the airways. Additionally, smoking weakens the immune response, making it harder for the body to fight off infections. The toxic substances in tobacco smoke also create an inflammatory environment in the lungs, further increasing vulnerability to infections such as pneumonia and bronchitis. These combined factors lead to a higher incidence of respiratory illnesses among smokers.