The adult human brain weighs about 3 pounds (1,300-1,400 g).
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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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Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Every year your body replaces 98% of your atoms.
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Chewing gum boosts your brain power.
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The human brain doesn't stop developing until about 25 years old.
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Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
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