Pulmonology refers to the branch of medical sciences that deal with diagnosing and treating diseases of the respiratory tract. The human body relies on a healthy, continuously functioning respiratory tract to support bodily functions. If it suffers any medical complications, the health of the entire body is adversely affected. This classifies it as a branch of intensive care since any issues to the respiratory tract develop immediate and critical medical complications that must be treated immediately. Pulmonologists are specialists in the respiratory system who diagnose, assist and treat patients with diseases such as pneumonia, tuberculosis, asthma, and chest-related issues. Under certain circumstances, pulmonologists may move a patient to artificial life support systems when their respiratory system fails to function effectively and also coordinate with cardiothoracic surgeons for complicated issues.