Teeth are the only part of the body that cannot heal themselves.
Fact #3279
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Your brain can store the equivalent of millions of gigabytes of information.
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The brain begins to suffer damage after about 5 minutes without oxygen.
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The human eye adapts to darkness by increasing light sensitivity.
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The human eye can process images in milliseconds.
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The human body has over 600 muscles.
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Your bones are stronger than steel.
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Your corneas receive no blood supply — they get oxygen directly from the air.
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The pacemaker regulates irregular heartbeats.
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