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There are 60,000 miles of blood vessels in every adult human.
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There are more bacteria in your mouth than there are people in the world.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.