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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Thyroid conditions may make getting pregnant impossible.
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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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Excessive alcohol use costs the country approximately $235 billion every year.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.