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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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The longest a person has survived after a heart transplant is 24 years.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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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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