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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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There are more sensory neurons in the tongue than in any other part of the body.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.