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.
149
Yawns are more contagious among people with closer relationships.
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
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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Our eyes are always the same size from birth, but our nose and ears never stop growing.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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