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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.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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The human body produces and destroys 15 million blood cells every second.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.