The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The average sperm cell swims at 8 inches per hour.
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The human brain has the capacity to store everything that you experience.
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When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
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Our eyes are always the same size from birth, but our nose and ears never stop growing.
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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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After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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