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The human body produces and destroys 15 million blood cells every second.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.