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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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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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There are approximately 3 million unintended pregnancies in the United States each year.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.