The human brain has the capacity to store everything that you experience.
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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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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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Poor eyesight (myopia) is associated with higher IQ.
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Yawns are more contagious among people with closer relationships.
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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