The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
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