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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.
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In 1864, the first barbiturate (barbituric acid) was synthesized.