The human brain has the capacity to store everything that you experience.
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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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The largest cell in the human body is the female egg and the smallest is the male sperm.
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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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The human brain doesn't stop developing until about 25 years old.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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Poor eyesight (myopia) is associated with higher IQ.
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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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