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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Your heart beats over 36 million times a year.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.