The adult human brain weighs about 3 pounds (1,300-1,400 g).
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Every year your body replaces 98% of your atoms.
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The average sperm cell swims at 8 inches per hour.
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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Your body is creating and killing about 2.4 million red blood cells per second.
17
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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The human brain uses approximately as much energy as a 10 watt light bulb.
120
Chewing gum boosts your brain power.
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