Below is an instruction from Human. Write a response.
    ### Instruction:
    Do you have information about CPR
    ### Response:
    Summary : When someone's blood flow or breathing stops, seconds count. Permanent brain damage or death can happen quickly. If you know how to perform cardiopulmonary resuscitation (CPR), you could save a life. CPR is an emergency procedure for a person whose heart has stopped or is no longer breathing.
    