The most authoritative answer in 2024
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Daniel Harris——Works at Google, Lives in Mountain View, CA
As a medical professional with expertise in emergency medicine, I can provide you with an informed answer to your question about the duration of survival without a heartbeat.
The human body can typically survive for a short period without a heartbeat. Brain cells begin to die after about 4 to 6 minutes without oxygen, which is why the "golden hour" in emergency medicine is so crucial. However, survival without a heartbeat for longer periods has been reported in cases where the body has been subjected to extreme cold, which can slow down the metabolic rate and extend the time without oxygen.
In medical settings, patients who experience cardiac arrest may be resuscitated using CPR and defibrillation. These interventions can restore a heartbeat and blood circulation, which can prevent brain death and allow for survival. The chances of survival decrease significantly with each passing minute without intervention.
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Charlotte Gonzalez——Studied at the University of Buenos Aires, Lives in Buenos Aires, Argentina.
The brain can survive for up to about six minutes after the heart stops. The reason to learn cardiopulmonary resuscitation (CPR) is that if CPR is started within six minutes of cardiac arrest, the brain may survive the lack of oxygen. After about six minutes without CPR, however, the brain begins to die.read more >>
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