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There are 20 feet of blood vessels in each square inch of human skin.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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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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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.