How long can the brain survive without supply of oxygen?

gman89

After about 4 to 6 minutes without oxygen, large numbers of brain cells begin to die. Prolonged hypoxia (suffocation), no more than a few more minutes results in death. http://www.memorylossonline.com/glossary/hypoxiaanoxia.html Feb 18 07, 10:38 AM

SLHDesign

About 3 to 5 minutes. Brain damage can occure if the brain is not getting oxygen after 5 minutes. Feb 18 07, 11:23 AM

Dragonkin

I remember hearing a rough estimate somewhere: "3 minutes without air, 3 days without water, 3 weeks without food" Feb 18 07, 1:18 PM

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