Random Brain Facts

    56 facts tagged with Brain Facts

    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).
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    On average, there's 100 billion neurons in the human brain.
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    On average, there's 300 billion neurons in the octopus brain.
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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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    The human brain is more active during sleep than during the day.
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    Man Lost 50-75% of His Brain to Water on the Brain, Lived Normally
    A 44-year-old man lost around 50%-75% of his brain to hydrocephalus (water on the brain) and continued to live a normal life. Specialists believe the fluid filled so slowly over his life that the brain remapped itself to retain functionality despite the loss of mass.
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    There are more nerve cells in the human brain than there are stars in the Milky Way.
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    The ancient Egyptians thought the function of the brain was to produce snot.
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