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There are more bacteria in your mouth than there are people in the world.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).