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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If you are cold you are more likely to be hungry because you use energy to keep warm.
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The human body contains over a billion miles of DNA.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Your heart will pump about 212 million liters in its lifetime.
26
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
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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