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The familiar sounds of your heart are made by the heart's valves as they open and close.
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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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.