Random Brain Facts

    56 facts tagged with Brain Facts

    10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
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    On average, there's 300 billion neurons in the octopus brain.
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    On average, there's 100 billion neurons in the human brain.
    83
    After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
    139
    After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
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