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In 1864, the first barbiturate (barbituric acid) was synthesized.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.