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There are 20 feet of blood vessels in each square inch of human skin.
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People about to have surgery must tell their health care providers about all supplements they take.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.