Intubation is a medical procedure in which a tube is inserted into a person's airway to help them breathe. This is often done in emergencies, during surgery, or when a patient cannot breathe on their own. The tube connects to a ventilator, which provides oxygen and removes carbon dioxide from the lungs. The procedure is typically performed by trained healthcare professionals, such as doctors or nurses. It requires careful monitoring to ensure the tube is placed correctly and that the patient is receiving adequate ventilation. Intubation can be lifesaving but also carries risks, such as injury to the airway or infection.