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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.
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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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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.