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alpha_wolf
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On average, how long can a human brain survive without oxigen without being noticably damaged? Thanks.
Ovbiously, the time limit for unnoticable damage is shorter than that... But how much shorter?A human can survive for four minutes without oxygen before the brain damage becomes so severe there is no realistic chance of survival.
Ok, to focus the question a bit, let's assume cardiac arrest at normal body temperature. Would there be any noticable damage after ~2.5 minutes?Marijn said:Like moonbear said, it depends for a great deal on the temperature of the body.
Yes, that's why I didn't say "no damage".But basicaly damage starts to be done the moment the brain is deprived of oxigen.
During oxygen deprivation, the brain is unable to receive the necessary amount of oxygen it needs to function properly. This can lead to a decrease in brain activity and cause damage to brain cells.
The brain can only survive for a few minutes without oxygen. After approximately 4-6 minutes, the lack of oxygen can cause irreversible damage to brain cells and can ultimately result in brain death.
The symptoms of brain oxygen deprivation can vary depending on the severity and duration of the deprivation. Common symptoms include confusion, dizziness, loss of consciousness, and changes in vision or speech. In more severe cases, seizures, coma, and even death can occur.
Some potential causes of brain oxygen deprivation include drowning, choking, heart attack, stroke, carbon monoxide poisoning, and severe blood loss. These situations can lead to a lack of oxygen reaching the brain, resulting in oxygen deprivation.
Treatment for brain oxygen deprivation depends on the cause and severity of the condition. In some cases, administering oxygen or performing CPR may help restore oxygen flow to the brain. In more severe cases, medical interventions such as hyperbaric oxygen therapy or medications may be necessary. Rehabilitation therapy may also be recommended to help with any long-term effects of the deprivation on brain function.