The human brain has the capacity to store everything that you experience.
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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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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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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Yawns are more contagious among people with closer relationships.
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An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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It takes about 20 seconds for a red blood cell to circle the whole body.
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