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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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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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On average, the stomach produces 2 L of hydrochloric acid per day.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.