There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
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If your DNA was stretched out it would reach to the moon 6,000 times.
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One human hair can support 3 ounces.
191
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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Your heart will pump about 212 million liters in its lifetime.
26
It takes about 20 seconds for a red blood cell to circle the whole body.
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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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