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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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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.