Artificial respiration is a technique used to help someone breathe when they are unable to do so on their own. This can occur due to various reasons, such as drowning, choking, or medical conditions. The process involves manually pushing air into the lungs, ensuring that oxygen reaches the bloodstream and carbon dioxide is expelled. There are different methods of artificial respiration, including mouth-to-mouth resuscitation and the use of devices like bag-valve masks. These techniques are crucial in emergency situations, as they can sustain life until professional medical help arrives or until the person can breathe independently again.