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There are 20 feet of blood vessels in each square inch of human skin.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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