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    12 Mind-Bending Facts About Your Brain

    Woah.

    1. If your brain's cortex were laid out flat, it would be about the size of a newspaper page.

    2. Your brain is 60% fat.

    3. Over the course of human evolution, brain size has tripled.

    4. Your brain uses about the same amount of power as a 15 watt light bulb.

    5. Older brains aren't slower because they're weaker, but because they hold more information.

    6. Your brain is only about 2% of your body mass, but uses up to 20% of its blood.

    7. You yawn when someone else does because of something called mirror neurons (probably).

    8. There are about 86 billion neurons in an average human brain.

    9. The brain can survive for up to 6 minutes after the heart stops.

    10. Your brain can't feel pain.

    11. The brain keeps developing well into your 20s and even 30s.

    12. A human brain can do more computations per second than a powerful supercomputer.