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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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The horizontal fraction bar was introduced by the Arabs.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.