Every year your body replaces 98% of your atoms.
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Your body is creating and killing about 2.4 million red blood cells per second.
17
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
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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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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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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55