An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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The average person's skin weighs twice as much as their brain.
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The human brain doesn't stop developing until about 25 years old.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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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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Your body is creating and killing about 2.4 million red blood cells per second.
17
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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