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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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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.