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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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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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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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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.