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Vaccines prevent between 2.5 and 4 million deaths every year.
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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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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.