The human body contains over a billion miles of DNA.
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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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Chewing gum boosts your brain power.
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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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Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Your thumb is about the same size as your nose.
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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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