Pulmonology is the medical specialty dedicated to the study, diagnosis, and treatment of diseases and conditions affecting the respiratory system, particularly the lungs and the airways. Pulmonologists are physicians who specialize in this field and are trained to manage a wide range of respiratory disorders, including but not limited to asthma, chronic obstructive pulmonary disease (COPD), pneumonia, tuberculosis, lung cancer, pulmonary fibrosis, and sleep-related breathing disorders such as sleep apnea.