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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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The horizontal fraction bar was introduced by the Arabs.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.