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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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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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There are more nerve cells in one human brain than there are stars in the Milky Way.