The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The human brain has the capacity to store everything that you experience.
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Enamel is hardest substance in the human body.
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When you take a step, you are using up to 200 muscles.
886
One human hair can support 3 ounces.
191
It takes about 20 seconds for a red blood cell to circle the whole body.
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Our Right Lungs takes more air than our left lung.
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