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Did you know?
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Everyone has one nostril that is larger than the other.
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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.