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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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%).
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There are more sensory neurons in the tongue than in any other part of the body.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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The familiar sounds of your heart are made by the heart's valves as they open and close.