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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
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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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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
Not You're Typical Apple
In the 1800s, most people were poor, and formal education beyond the first several grades was a ...
A diagrammatic section through a typical adult tooth.
A cross-sectional view of a typical zirconia oxygen sensor.
Success is an iceberg
Structure of a Typical Vertebra (Superior View)