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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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The horizontal fraction bar was introduced by the Arabs.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.