Why can’t the brain be revived after death?

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The other organs can be restarted post-mortem, what makes the brain so different?

In: Biology

4 Answers

Anonymous 0 Comments

Because that’s not accurate. Once they’re dead they’re dead. That goes for any organ. They’re not restarting hearts, etc where too many of the cells are dead. Some is ok for a lot of organs because the rest of the organ can take over. For the brain though it’s all important. Losing any of it is bad. Things like CPR keep the organs supplied with at least some oxygen and so keep them alive for longer in the hope that either the heart will spontaneously start beating again or medical intervention can take place.

The brain though requires a lot of oxygen so even after successfully getting the heart going after a bout of CPR the brain is quite often damaged. This is because due to the high oxygen needs of brain cells they begin to die after just a few minutes. Cells of other organs can last longer.

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