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Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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The human body produces and destroys 15 million blood cells every second.
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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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On average, the stomach produces 2 L of hydrochloric acid per day.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.