The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The human body contains over a billion miles of DNA.
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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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The human brain uses approximately as much energy as a 10 watt light bulb.
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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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The average person's skin weighs twice as much as their brain.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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