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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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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
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The average office desk has 400 times more bacteria on it than a toilet.
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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.