When you blush, the lining of your stomach turns red too.
Fact #10434
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Your bones are roughly five times stronger than steel by weight.
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Every second, your body produces millions of new cells.
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The human brain uses about 20% of the body's total energy despite being only 2% of body weight.
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Your brain fills in your blind spot so you never notice it exists.
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The human body contains enough carbon to make thousands of pencils.
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A human brain generates enough electrical activity to be measured outside the skull.
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Pacemakers help regulate abnormal heart rhythms.
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The human body contains enough carbon to make about 9,000 pencils.
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