The adult human brain weighs about 3 pounds (1,300-1,400 g).
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Your heart will pump about 212 million liters in its lifetime.
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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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Your thumb is about the same size as your nose.
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The human brain has the capacity to store everything that you experience.
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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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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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