So many, in fact, that the current guideline set by the American Heart Association (AHA) is that you continue trying to revive the person until their core body temperature is above 95 degrees Fahrenheit- 95 degrees, because below that is the technical definition of hypothermia.

What is the longest someone has been dead and revived?

Velma Thomas, 59, of Nitro, West Virginia, USA holds the record time for recovering from clinical death. In May 2008, Thomas went into cardiac arrest at her home. Medics were able to establish a faint pulse after eight minutes of CPR.

What are the 5 signs of death?