mouth-to-mouth resuscitation

Artificial respiration is the act of assisting or stimulating respiration, a metabolic process referring to the overall exchange of gases in the body by pulmonary ventilation, external respiration, and internal respiration. Assistance takes many forms, but generally entails providing air for a person who is not breathing or is not making sufficient respiratory effort on his/her own (although it must be used on a patient with a beating heart or as part of cardiopulmonary resuscitation to achieve the internal respiration). The first method of CPR was developed in 1893.