Every year your body replaces 98% of your atoms.
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The human brain has the capacity to store everything that you experience.
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Our Right Lungs takes more air than our left lung.
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Enamel is hardest substance in the human body.
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If you are cold you are more likely to be hungry because you use energy to keep warm.
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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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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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