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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.