Every breath you take fills your body with oxygen, which is vital for every cell in the body to get energy. When something disrupts your respiratory system, the respiratory physician, or pulmonologist, is the specialist who comes into the picture to provide care. On Humans of Healthcare, Consultant Respiratory Physician Prof Dr Mohamed Faisal Abdul Hamid, from the Faculty of Medicine, Universiti Kebangsaan Malaysia, shares more about this area of specialisation and what the training pathway looks like.