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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.