The human brain uses approximately as much energy as a 10 watt light bulb.
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One human hair can support 3 ounces.
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Your heart will pump about 212 million liters in its lifetime.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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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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