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Why are brains vulnerable to the oxygen loss in anoxic brain injuries?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner

Brain cells are so sensitive to oxygen deprivation that they can start to die within five minutes. One reason that the brain is so vulnerable to the oxygen deprivation that leads to anoxic brain injuries is because the brain consumes so much oxygen. In fact, the brain uses a disproportionate amount of oxygen compared to the rest of the body. Approximately a fifth of the total supply of oxygen that the body uses is used by the brain.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.