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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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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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Thyroid conditions may make getting pregnant impossible.
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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.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.