The adult human brain weighs about 3 pounds (1,300-1,400 g).
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After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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The human brain uses approximately as much energy as a 10 watt light bulb.
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The average sperm cell swims at 8 inches per hour.
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If you are cold you are more likely to be hungry because you use energy to keep warm.
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Our Right Lungs takes more air than our left lung.
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Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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