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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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There are more sensory neurons in the tongue than in any other part of the body.

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