CPR, or cardiopulmonary resuscitation, is a vital first aid technique used when someone’s heart stops beating

https://wakelet.com/wake/fmOEqP8h_XIXt4P-mwq4B

CPR, or cardiopulmonary resuscitation, is a vital first aid technique used when someone’s heart stops beating. Knowing how to perform CPR can double or triple a victim's chances of survival before professional help arrives.