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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
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There are 20 feet of blood vessels in each square inch of human skin.
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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 people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.