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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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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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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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